Toggle navigation
explore
parks
collections
reports and research literature
map
outreach
hosted mapping
how to participate
about
about opn
access OPN data via OAI
contact
navigating collections
using images
Search Results
Sort (Relevance)
Relevance
Title
Date
Items per page (20):
20
50
100
Page 1 of at least 120
About 2,300 Items
Jump to Page
View:
Refine Search
update
reset
Park
Abraham Lincoln Birthplace National Historical Park
4
Andersonville National Historic Site
11
Biscayne National Park
36
Blue Ridge Parkway
11
Carl Sandburg Home National Historic Site
6
Clemson University Libraries
43
Congaree National Park
207
Everglades National Park
40
Fort Sumter National Monument
6
Great Smoky Mountains National Park
483
Harpers Ferry National Historical Park
34
Kings Mountain National Military Park
27
Mammoth Cave National Park
255
National Park Service
425
National Park Service Water Resources Division
90
North Carolina State Parks
5
South Carolina Department of Parks, Recreation and Tourism
455
University of Georgia Libraries
5
Vicksburg National Military Park
2
Winthrop University
4
Yellowstone National Park
661
Collection
Blue Ridge Parkway Engineering Plans
11
Carl Sandburg's Collection of Stereographs
6
Civil War Newspaper Illustrations
2
Civilian Conservation Corps in Mammoth Cave National Park
42
Color Slides
11
Color Slides from Fort Sumter National Historical Monument
4
Color Slides of Biscayne National Park
36
Color Slides of Congaree National Park
167
Color Slides of Everglades National Park
1
Color slides of South Carolina State Parks
455
Congaree Photographic Prints
40
Environmental Awareness
1
GRSM Glass Plate Negatives
1
Glass Plate Negatives
7
Historic Materials of Kings Mountain Battlefield
1
Historical Reenactments, Kings Mountain National Military Park
4
James Hare Lantern Slides
4
Jim Shelton's Glass Plate Negatives
2
Kings Mountain Nitrate Negatives
8
Mammoth Cave National Park Nitrate Negatives Collection
206
Modern Photos
34
Negatives of Great Smoky Mountains National Park
479
Photo Album of Vicksburg Grounds
2
Photographs of Everglades NP
39
Reports and Research Literature
148
Survey of National Parks
13
Yellowstone Photo Albums
661
Creator
AHB
1
Alesch, Ric
3
Alesch, Richard
1
Alston, William F. (Ranger Naturalist)
11
Andersonville National Historic Site Staff
11
B.T.
1
Bender, V. R.
2
Blackstone River Valley National Heritage Corridor
1
Bordon, F.Y.
1
Boucher, Jack (NPS)
6
Bragg, R. L.
1
Burdick, B.
1
Bureau of Reclamation
3
Bureau of Relcamation
1
Burkett, Claire P.
14
Cardwell, R. Glenn
2
Cavendish, M.G.
1
Childers, D. and Kresch, D. et al.
1
Clark, R.
1
Coker, Robert
1
Colorado River Fishes Recovery Team
1
Conway, Martin
1
Cruise, David
1
Davis, G.
2
Dean, W.W.
1
Dong, A.E.
1
Duchrow, R.
1
Dunn, Commodore (Cliff) Clifton
1
EGF
1
Earnst, John
9
Edmonds, Robert L.
1
Espinoza, Henry
1
Evison, Boyd
7
Exline, Edouard Evartt
8
Fawcett, Arthur F.
15
Fay, Frederick A.
1
Federal Power Commission, Bureau of Power
1
Fitzpatrick, Edwin
9
Fitzpatrick, Larry J.
2
Flora, M.D.
1
Franzen, Archie
2
Galbraith, D. E.
1
Glick E.E., Frezon S. E.
1
Gosselink, James
1
Grand Canyon Trust
2
Grant, George
5
Grossman, Charles S.
3
HDR Enginnering, Inc
1
Hains, Ben
2
Hare, James H., 1856-1946
4
Haugen, Robert T.
1
Hebner SW
1
Herrera Environmental Consultants
1
Holden, P.
1
Hooks, W. S.
1
Huskey, Jim
2
Inglis, R.
2
Ismael, T.
1
Jennison, Harry Milliken
28
Johnson, R.R.
1
Jones, C.
1
Jones, Tommy
1
Karle, K.
1
Keystone View Company
6
King, Willis
9
King, Willis, 1908-
105
Kratzer, D.J.
1
Kratzer, Deborah
2
Kubly, D.M.
1
Laird, L.
1
Larson, Gary
1
Law Engineering and Environmental Services, Inc
1
Lilly, Wayne
3
Lix, Henry W.
11
Loope, L.L.
1
Lyon, Jonathan
1
Lyons, J.B.
1
MacDonald, H.
1
Marzolf, G. Richard
1
Menning, Ed P.
4
Miller, Don
1
Miller, W.
1
Molloy, Peter
1
Mott, David N.
1
Myers, Marion (Mike)
3
National Park Service
41
Nelson, Hal
1
Nichols, E. A.
4
Nielson, J.M.
1
Nolan, K.
1
O'Brien, J.
2
Obermeier, Stephen
1
Ozaki, V.
1
Pearson, John C.
1
Perkins, Bob
3
Perkins, Robert N.
1
Peterson, Rolf
2
Pitcaithley, D.
1
Pitcaithley, Dwight
1
Powell
1
Purkerson, L. Lee
1
Purvis,J.M.
2
Romer, G. W.
1
Rosenlich, G.
1
Salas, J.D.
1
Schmidt D., Hebner S.W.
1
Schultz, D. Glenn
10
Scott, Kevin
1
Scott, Ted R.
5
Senne
5
Sharp, Aaron J. (Aaron John), 1904-
12
Shelton, Jim
2
Shen, H. and Anderson, R. et al.
1
Sikkema, D.
1
Sikkema, D.A.
1
Silsbee, David: Larson, Gary
1
Smillie, G.
1
Smolka L
1
Sneddon, G. Lee
1
Sortor Lynch, C.
1
South Carolina Department of Parks, Recreation and Tourism
455
Speelman, J.
1
Stern, Michele S.
2
Stites, James A.
38
Stoneburner, D.
1
Stoughton, Cecil W.
1
Stupka, Arthur
38
Sullivan, Maurice
6
Sullivan, R.J.
2
Sultz, L.G.
1
Swope
1
Taylor, D. William
1
Thiessen, Thomas
2
Toll, Roger W.
1
Toner, Richard C.
1
Trent, Mrs.
1
Tucker, D.
1
Turrini-Smith, L.
1
US Bureau of Reclamation
1
US Department of Energy
4
US Forest Service
1
United States Fish and Wildlife Service
1
Valentine, W.
3
Vancleve
1
Varnum, Nick
1
WEN
1
Wentworth, Paul M.
4
West Virginia Department of Natural Resources
1
White, R. P.
21
White, R.P.
4
Wilburn, Hiram Coleman, 1880-1967
7
Wilhelm, R. A.
1
Williams, Ames W.
3
Williams, Milo Woodbridge, 1917-2012
1
Zani, Dick
1
Date
From:
January
February
March
April
May
June
July
August
September
October
November
December
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Until:
January
February
March
April
May
June
July
August
September
October
November
December
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
topic
Absaroka Range (Mont. and Wyo.)
8
Absaroka-Beartooth Wilderness (Mont. and Wyo.)
1
Aerial photographs
3
Aerial photography
8
Aerial views
23
Agricultural machinery
1
Agricultural mapping
1
Agriculture
4
Air quality
3
Albright, Horace M. (Horace Marden), 1890-1987
6
Alder
2
Algae--Ecology
1
Alien plants
1
Amelanchier
1
American Legion
1
American beaver
2
American bison
23
Amphibians
1
Amphibians--Eggs
1
Amphitheaters
3
Animal carcasses
7
Animal feeding
6
Animal migration
1
Animal tracks
2
Animals--Counting
2
Animals--Food
10
Animals--Habitations
4
Anniversaries
1
Antlers
2
Appalachian Mountains
61
Appalachians (People)
1
Aquatic habitats
1
Aquatic plants
1
Arch bridges
2
Archaeology
2
Archeological . .
1
Arches
1
Architecture
1
Ashley River (S.C.)
1
Aspen
4
Asphalt rock
1
Automobiles
43
Axes
2
Bacteria
1
Badgers
1
Bald eagle
1
Baldcypress
1
Baptism
3
Barges
16
Barns
6
Barrow's goldeneye
1
Basalt
5
Basalt outcrops
2
Baseball fields
1
Bathhouses
1
Bathing beaches
1
Battlefields
1
Bays
1
Bays--Florida
1
Beaches
2
Bear River Massacre, Idaho, 1863
1
Bears
4
Beartooth Mountains (Mont. and Wyo.)
1
Beavers
10
Beavers--Behavior
5
Bechler River Ranger Station (Wyo.)
5
Bed load
1
Benches
1
Bibliography
1
Big Cypress National Preserve (Fla.)
1
Big Hole National Battlefield (Mont.)
1
Big Hole River (Mont.)
1
Big South Fork National River and Recreation Area (Tenn. and Ky.)
2
Big Thicket National Preserve (Tex.)
2
Big Thompson River (Colo.)
1
Bighorn sheep
3
BioSystems Analysis, Inc.
1
Biologists
3
Biosphere reserves
2
Birds
12
Birds--Infancy
1
Birds--Nests
7
Biscuit Basin (Wyo.)
10
Bison
3
Black River Watershed (King County, Wash.)
1
Black Sand Geyser Basin (Wyo.)
2
Black bear
1
Blasting
11
Blue Ridge Parkway (N.C. and Va.)
11
Bluebirds
1
Bluegrasses
1
Bluestone National Scenic River (W. Va.)
3
Boars
5
Boathouses
1
Boats
12
Boats and boating
48
Bones
1
Boulders
20
Boxley Valley (Ark.)
1
Boy Scouts
1
Breccia
2
Brick walls
4
Bridge approaches
3
Bridges
207
Bridges--Abutments
11
Bridges--Design and construction
45
Bridges--Foundations and piers
4
Bridges--Maintenance and repair
20
Bridges--Snow and ice control
1
Brush
2
Buffalo National River (Ark.)
11
Buffalo River (Ark.)
2
Buffalo River Valley (Ark.)
3
Building
2
Building materials
5
Building, Wooden
2
Buildings
1
Buildings, structures, etc
2
Bulldozers
4
Bulletin boards in libraries
1
Burial
1
Buses
1
Cabinet officers
1
Cabinet officers' spouses
1
Cables
8
Cache La Poudre River National Water Heritage Area (Colo.)
1
Cache la Poudre River (Colo.)
1
Cades Cove (Tenn.)
3
Camp sites, facilities, etc
5
Campfires
1
Camping
9
Canada goose
3
Canals
446
Cane River Creole National Historical Park (La.)
3
Canoes and canoeing
11
Cantilever bridges
2
Canyon Rims Recreation Area (Utah)
1
Canyons
133
Carnivora
2
Carts & wagons
1
Cascade Creek (Park County, Wyo.)
1
Castle Geyser (Wyo.)
3
Catawba River (N.C. and S.C.)
445
Cats
1
Cattle
2
Caves
18
Chattahoochee River
1
Chattahoochee River National Recreation Area (Ga.)
1
Chemical plants
1
Children
3
Chimneys
1
Chronology, Historical
2
Cities and towns
2
Clark's nutcracker
2
Clearing of land
7
Cliffs
47
Climate change mitigation
4
Clouds
4
Coal mine waste
1
Coaling
1
Coarse woody debris
5
Cobblestones
3
Cofferdams
2
Colorado River (Colo.-Mexico)
6
Colorado River Fishes Recovery Team
1
Colorado River Research Program (Grand Canyon National Park)
1
Colorado River Watershed (Colo.-Mexico)
1
Colorado pikeminnow
1
Columbia River
4
Concrete
2
Concrete bridges
6
Concrete bridges--Cracking
1
Conemaugh River Lake (Pa.)
1
Congaree National Park (S.C.)
67
Congaree River (S.C.)
139
Conglomerate
1
Congresses and conventions
1
Connecticut River National Parkway and Recreation Area
1
Conservation
2
Construction
6
Construction equipment
2
Construction projects
17
Construction workers
1
Copper River (Alaska)
1
Core Sound (N.C.)
1
Corrals
5
Cottages
2
Cottontails
1
Cottonwood
1
Coyote
1
Cracking
3
Cranes, derricks, etc
2
Cretaceous-Tertiary boundary
1
Cribwork
3
Crow Indians
1
Crowd control
1
Crushing machinery
1
Crystal Falls (Wyo.)
2
Cultural property
1
Culverts
5
Dams
17
Debris
1
Decking materials
2
Deer
6
Del Condon, David
1
Delaware River (N.Y.-Del. and N.J.)
1
Delaware Water Gap National Recreation Area (N.J. and Pa.)
3
Delta (Miss. : Region)
1
Design
1
Designs and plans
1
Dikes (Engineering)
2
Dikes (Geology)
1
Dinosaur National Monument (Colo. and Utah)
1
Directories
1
Dirt roads
48
Ditches
2
Docks
8
Douglas fir
2
Drainage
3
Drawing
1
Drilling and boring
1
Drilling and boring machinery
2
Drilling platforms
1
Droughts
2
Ducks
2
Dust
2
Dwellings
4
Eagle Scouts
1
Earthmoving machinery
2
Earthquake damage
5
Ecological surveys
1
Ecology
1
Ecosystem services
1
Effect of mining on
2
Effect of water pollution on
1
Elders (Plants)
1
Electric generators
1
Electric lines
1
Elk
24
Elwha River (Wash.)
6
Emergency management
1
Engineered log jams (Hydraulic engineering)
1
Engineering drawings
8
Engineering geology
1
Eno River State Park (N.C.)
1
Environmental education
2
Environmental hydraulics
1
Environmental impact analysis
3
Environmental impact statements
5
Environmental management
1
Environmental monitoring
1
Environmental risk assessment
2
Environmental risk assessment--United States
1
Environmental sampling--Equipment and supplies
1
Environmentalism
1
Erosion
9
Ethnohistory
1
Everglades National Park (Fla.)
1
Evergreens
1
Everts, Mount (Wyo.)
8
Excavation
3
Experiments
1
Explosives
2
Families
3
Farmhouses
1
Faults (Geology)
1
Fawns
1
Fences
1
Ferries
45
Field experiments
1
Fieldwork
2
Fills (Earthwork)
6
Filmstrips
1
Fire departments--Equipment and supplies
1
Fire extinction
1
Fire lookout stations
1
Firehole River (Wyo.)
62
Fish culture
1
Fish habitat improvement
3
Fish hatcheries
4
Fish populations
2
Fish stocking
4
Fish traps
10
Fisheries
2
Fishers
13
Fishery scientists
1
Fishes
11
Fishes, Dressing of
1
Fishes--Breeding
1
Fishes--Eggs
1
Fishes--Research
1
Fishing
21
Fishing Bridge (Wyo.)
19
Fishing boats
3
Fishing rods
1
Flood damage
22
Floodplain management
1
Floods
36
Florida Keys (Fla.)
1
Flowering dogwood
1
Flumes
4
Fontana Lake (N.C.)
2
Footbridges
25
Fords (Stream crossings)
1
Forest fire fighters
1
Forest fires
5
Forest fires--Prevention and control
1
Forest insects--Control
1
Forest reserves
2
Forests and forestry
112
Formations (Geology)
4
Fort Benton (Fort Benton, Mont. : Fort)
1
Fortification
1
Foundations
1
Fountain Paint Pot (Wyo.)
2
Foxtail
1
Gages
1
Gallatin Range (Mont.)
2
Gallatin River (Wyo. and Mont.)
3
Game protection
5
Game reserves
1
Garages
1
Gardner River (Wyo. and Mont.)
41
Gauley River National Recreation Area (W. Va.)
3
Geese
1
General stores
2
Geological surveys
4
Geology
4
Geothermal resources
1
Geysers
36
Giant Geyser (Wyo.)
3
Gibbon Falls (Wyo.)
5
Gibbon River (Wyo.)
19
Girls
1
Glaciers
1
Golden Gate (Wyo.)
9
Golden eagle
1
Gorges
2
Government employees
2
Government vehicles
1
Graders (Earthmoving machinery)
1
Grading (Earthwork)
2
Grand Calumet River Watershed (Ind. and Ill.)
1
Grand Canyon National Park (Ariz.)
6
Grand Canyon of the Yellowstone (Wyo.)
67
Grand Geyser (Wyo.)
1
Grand Teton National Park (Wyo.)
2
Granite
4
Grasses
3
Grasslands
1
Gravel
2
Gray jay
2
Great Platte River Road
2
Great River Road
1
Great Smoky Mountains National Park (N.C. and Tenn.)
38
Great Smoky Mountains National Park Biosphere Reserve (N.C. and Tenn.)
58
Great blue heron
1
Green River (Wyo.-Utah)
1
Green River Valley (Wyo.-Utah)
1
Green River Watershed (Wyo.-Utah)
1
Grotto Geyser (Wyo.)
2
Grouse
1
Guide-books
1
Gunnison River (Colo.)
2
Hand-railing
1
Harbors
1
Hardwoods
2
Harlequin duck
1
Hats
1
Hay
3
Hazard signs
1
Headquarters Site (Or.)
1
Hebgen Lake (Mont.)
1
Herders
1
Herding
1
Hikers
1
Historic American Buildings Survey
1
Historic bridges
1
Historic buildings
3
Historic industrial sites
1
Historic preservation
1
Historic sites
1
Historical markers
4
History
4
History--Chronology
1
Hoh River (Wash.)
2
Hoh River Valley (Wash.)
1
Holes
4
Hoodoos (Geomorphology)
4
Horse-drawn vehicles
15
Horses
46
Hospitals
1
Hot springs
11
Hotels
5
Humpback chub
1
Hurricane Andrew, 1992
11
Hurricane effects
1
Hydrological forecasting
1
Hydrological stations
2
Hydrological surveys
1
Hydrology
8
Hymenocallis caroliniana
445
Ice
5
Ice on rivers, lakes, etc
42
Important bird areas
69
Indiana Dunes National Lakeshore (Ind.)
3
Industrial chimneys
1
Inland water transportation
445
Insect pests
1
Inventories
2
Iron and steel bridges
2
Irrigation
3
Irrigation canals and flumes
1
Irrigation water
2
Islands
12
Jackhammers
1
Jackson Lake (Teton County, Wyo.)
2
John H. Chafee Blackstone River Valley National Heritage Corridor (Mass. and R.I.)
1
Journalists
4
Junipers
1
Jupiter Terrace (Wyo.)
1
Klamath River (Or. and Calif.)
1
Knife River Indian Villages National Historic Site (N.D.)
5
Lagoon ecology
1
Lagoons
2
Lake trout
2
Lakes
62
Lambs
2
Land use
1
Landscape architects
2
Landscape photography
3
Landscapes
12
Landslides
34
Laundries
1
Laundry
1
Legislators--United States
2
Leisure
3
Levees
1
Lewis River (Wash.)
1
Limestone
1
Limnology
1
Litter (Trash)
2
Little Bighorn Battlefield National Monument (Mont.)
2
Little Bighorn River (Wyo. and Mont.)
1
Little Calumet River (Ind. and Ill.)
2
Lodgepole pine
5
Lodging-houses
1
Log buildings
10
Log cabins
11
Logging
3
Lower Elwha Tribal Community of the Lower Elwha Reservation, Washington
1
Lower Falls of the Yellowstone River (Wyo.)
51
Lower Geyser Basin (Wyo.)
5
Lumber
11
Lumber River (N.C. and S.C.)
1
Lumber River State Park (N.C.)
1
Mack trucks
1
Madison River (Wyo. and Mont.)
8
Magnolia Plantation (Natchitoches Parish, La.)
1
Maintenance and repair
4
Male employees
1
Mammals
1
Mammoth Hot Springs (Wyo.)
10
Management
2
Mangrove forests
9
Mangrove plants
1
Mangrove swamps
1
Maps
10
Marchantia
2
Marine ecology
1
Marmots
1
Mary Bay (Wyo.)
1
Meadows
27
Memorials
1
Men
4
Merced River (Calif.)
3
Merrimack River Valley (N.H. and Mass.)
1
Mills and mill-work
5
Mine drainage
1
Mineral resources conservation
1
Miniature objects
1
Mississippi River
5
Mississippi River Delta (La.)
1
Missouri River
3
Missouri River Watershed
1
Molly Islands (Wyo.)
1
Monasteries
1
Monkeys
1
Monuments
3
Moose
10
Moose calves
4
Moran, Thomas, 1837-1926
1
Morphology
1
Motion pictures--Production and direction
1
Motorboats
24
Motorboats--Docking
1
Motorcycles
1
Mount Rainier National Park (Wash.)
1
Mountain Bridge Wilderness (S.C.)
6
Mountain laurel
1
Mountain passes
19
Mountain roads
1
Mountain sheep
5
Mountains
405
Moving of buildings, bridges, etc
1
Mud
8
Mudslides
1
Mule deer
2
Museum exhibits
1
Museums
5
Mushrooms
1
Muskrat
2
Mussels
1
Nameplates (Plaques)
1
National Association for State River Conservation Programs
1
National cemeteries
1
National parks & reserves
6
National parks and reserves
25
National parks and reserves--Management
3
National parks and reserves--Public use
2
National parks and reserves--United States--Management
1
Natural areas--Public use
1
Natural disasters
7
Natural resources
2
Natural resources surveys
1
Natural resources--Management
6
Naturalists
1
Nature
3
Nature trails
12
New River Gorge (W. Va.)
9
New River Gorge National River (W. Va.)
1
New River State Park (N.C.)
1
Nickel
1
Norris Geyser Basin (Wyo.)
10
Norris Ranger Station (Wyo.)
1
North American river otter
1
North Platte River
1
Nutrient cycles
1
Nye, Gerald P. (Gerald Prentice), 1892-1971
1
Oakland Plantation (La.)
2
Obsidian Cliff (Wyo.)
3
Oil as pesticide
1
Oil storage tanks
1
Oiled roads
11
Old Faithful Geyser (Wyo.)
9
Old growth forests
67
Olympic National Park (Wash.)
2
Osprey
1
Otters
2
Outbuildings
4
Outdoor recreation
3
Outdoor recreation--Colorado River (Colo.-Mexico)--Maps
1
Outhouses
1
Ozark National Scenic Riverways (Mo.)
2
Pacific Creek (Teton County, Wyo.)
1
Packhorse camping
1
Paddle steamers
1
Palms
2
Pamlico River (N.C.)
1
Panoramas
3
Parapets
3
Park buildings
25
Park facilities
1
Park naturalists
4
Park rangers
31
Park rangers' spouses
1
Parking lots
1
Parks--Employees
28
Parks--Public use
5
Parks--South Carolina
454
Parkways
6
Pastures
2
Pavements
5
Pecos River (N.M. and Tex.)
1
Pedestrian bridges
3
Pelicans
1
People
1
Person
1
Persons
6
Petrified forests
1
Petrology
1
Photography
1
Physiology
1
Picnics
2
Piers
1
Pine
1
Pinelands National Reserve (N.J.)
1
Pipe
1
Planning
3
Plant populations
1
Plants
2
Plowing
1
Pollution
2
Ponds
2
Pony Express National Historic Trail
1
Porches
2
Portable radios
1
Portraits, Group
2
Potomac River
3
Power shovels
1
Power-plants
1
Princes
3
Proposal writing in community development
1
Public buildings
1
Public lands--United States--Management
1
Puffballs
1
Quarries and quarrying
1
Radio telemetry
1
Radioactivity
1
Rafting (Sports)
1
Rail-trails
1
Railroad bridges
7
Railroad stations
1
Railroad trains
1
Railroads
4
Rainbow trout
1
Rainy River (Minn. and Ont.)
1
Ranches
23
Range management
6
Range plants--Control
4
Rangelands
4
Ranger stations
10
Rapids
16
Rare fishes
1
Ravines
12
Recovery Program for Endangered Fish of the Upper Colorado River Basin
1
Recreation
5
Recreation and state
1
Recreation area parking facilities
8
Recreation areas
451
Recreation areas--Maintenance
1
Red maple
1
Red-tailed hawk
1
Redwood Creek (Humboldt County, Calif.)
1
Redwood National and State Parks (Calif.)
1
Reforestation
1
Reptiles
1
Research
2
Restoration monitoring (Ecology)
1
Retaining walls
19
Retaining walls--Design and construction
1
Rhododendron maximum
2
Rhododendrons
1
Rhyolite
2
Riparian areas
1
Riparian plants
1
Riprap
4
River Bends
1
River Brand Rice Milling Company
1
River boats
2
River channels
21
River sediments
1
Rivers
1582
Rivers--Colorado
2
Rivers--Florida
31
Rivers--Recreational use
5
Riverside Geyser (Wyo.)
2
Road construction workers
3
Road machinery
8
Road materials
2
Road rollers
3
Roads
176
Roads--Design and construction
35
Roads--Flood damage
2
Roads--Guard fences
6
Roads--Maintenance and repair
23
Roads--Snow and ice control
6
Roads--Widening
1
Roadside improvement
5
Rocks
177
Rockslides
7
Root cellars
1
Roots
1
Rosy finches
1
Rotary tillers
2
Ruffed grouse
1
Ryegrasses
1
Sagebrush
3
Saint Helens, Mount (Wash.)
1
Saint Peter Sandstone
1
Scenic overlooks
58
Scotts Bluff National Monument (Neb.)
2
Sediment control--Law and legislation
1
Sediment transport
1
Sediments (Geology)
1
Settling basins
1
Sewage disposal
1
Sewer design
2
Shark River Slough (Fla.)
2
Ships
1
Shoshone River (Wyo.)
2
Shrubs
1
Sidewalks
4
Signs and signboards
10
Signs and symbols
1
Sills (Geology)
2
Sitka spruce
2
Skis and skiing
5
Sky
1
Slaughtering and slaughter-houses
1
Sluices
1
Snags (Forestry)
1
Snake River Valley (Wyo.-Wash.)
1
Snakes
2
Snow
176
Snow removal
8
Snow removal--Equipment and supplies
8
Snowmen
1
Snowplows
4
Snowshoes and snowshoeing
1
Soda Butte Creek (Mont. and Wyo.)
5
Soil conservation
7
Soil surveys
1
Soils
2
Spanish moss
1
Spillways
1
Spring River Watershed (Mo.)
1
Springs
18
Stables
2
Stagecoaches
4
Stairs
4
Steam shovels
2
Steel I-beams
4
Stone walls
7
Stono River (S.C.)
1
Strategic planning
6
Stream measurements
1
Stream restoration
9
Streams
4
Summer
2
Sun--Rising and setting
1
Surveying
1
Suspension bridges
18
Swamps
17
Swans
3
Swimmers
1
Swimming
27
Swimming pools
1
Swing bridges
2
Sylvan Pass (Wyo.)
2
Synthesis
1
Tables
1
Tailings (Metallurgy)
1
Taiya River (Alaska)
1
Talus (Geology)
1
Tamiami Trail (Fla.)
1
Tankers
2
Technical publication (Utah. Department of Natural Resources)
1
Telephone lines
3
Telephone lines--Design and construction
2
Tents
10
Terraces (Geology)
8
Teton Range (Wyo. and Idaho)
2
Three Rivers Water Trail (Pa.)
1
Timber
5
Timberline
1
Toklat River Watershed (Alaska)
1
Toll, Roger W. (Roger Wolcott), 1883-1936
1
Tour guides (Manuals)
2
Tourism
2
Tourists
38
Towboats
1
Tower Creek (Wyo.)
1
Tower Fall (Wyo.)
7
Towers
1
Tracklaying vehicles
1
Tractors
1
Traffic accidents
5
Traffic congestion
4
Trails
61
Trails & paths
1
Trails--Nebraska
2
Travertine
3
Tree felling
4
Tree planting
1
Trees
421
Trees, Fossil
4
Trestles
1
Trout
4
Trout farming
2
Trout fisheries
1
Trucks
8
Trumpeter swan
5
Trusses
1
Tubing (Aquatic sports)
15
Tucker Sno-Cat
1
Tugboats
3
Tundra swan
1
Tuolumne River (Calif.)
1
Turbines
2
Turner River (Fla.)
2
U.S. Atomic Energy Commission
1
Uncompahgre National Forest (Colo.)
1
Uncompahgre River Watershed (Colo.)
1
United States commissioners
1
United States--Armed Forces
2
United States--History--Civil War, 1861-1865
2
United States--History--Civil War, 1861-1865--Prisoners and prisons
11
United States--History--Revolution, 1775-1783
1
United States. Bureau of Outdoor Recreation
1
United States. Bureau of Reclamation
1
United States. Federal Civil Works Administration
4
United States. Forest Service
1
United States. Interagency Whitewater Committee
1
United States. National Park Service
9
United States. National Park Service. National Trails Intermountain Region
2
United States. National Park Service. Rivers and Trails Conservation Assistance
1
United States. National Park Service. Rivers, Trails, and Conservation Assistance Program
1
United States. National Park Service. Rocky Mountain Regional Office
1
United States. National Park Service. Rocky Mountain Regional Office. River and Trail Conservation Assistance
1
United States. National Park Service. Water Resources Division
1
Upper Delaware National Scenic and Recreational River (N.Y. and Pa.)
1
Upper Falls of the Yellowstone River (Wyo.)
34
Upper Geyser Basin (Wyo.)
3
Vaccination of animals
1
Valleys
29
Vegetation and climate
2
Vegetation management
1
Vegetation mapping
1
Vegetation surveys
1
Viaducts
3
Vicksburg Campaign Trail
1
Vicksburg National Military Park (Miss.)
2
Views
4
Virgin River
4
Virgin River, North Fork (Utah)
1
Visitors' centers
1
Volcanic ash, tuff, etc
1
Volcanoes
1
Wagons
3
Warehouses
1
Washburn, Mount (Wyo.)
13
Waste disposal in rivers, lakes, etc
1
Watchtowers
1
Water
13
Water conservation
2
Water in agriculture
2
Water levels
1
Water pollution control industry
1
Water quality
14
Water quality biological assessment
1
Water quality management
3
Water quality monitoring stations
6
Water quality--Measurement
3
Water resources development
2
Water resources development--Planning
1
Water resources development--United States--Planning
1
Water temperature
2
Water--Distribution
4
Water-pipes
3
Water-power
2
Water-resources investigations report
1
Water-supply
1
Wateree River (S.C.)
4
Waterfalls
186
Watersheds
1
Weirs
1
West Thumb Geyser Basin (Wyo.)
1
West Virginia. Division of Water Resources
1
White River (Pierce County and King County, Wash.)
1
White River Watershed (Pierce County and King County, Wash.)
1
White-water canoeing
1
Wigwams
1
Wilbur, Ray L. (Ray Lyman), 1875-1949
1
Wild and scenic rivers
2
Wild boar hunting
5
Wilderness areas
75
Wilderness lodges
2
Wildlife management
2
Willows
6
Wind power
1
Wire fencing
1
Women employees
1
Wood frog
2
Wood poles
4
Wood--Deterioration
1
Wooden bridges
34
Wooden fences
2
Yampa River (Colo.)
5
Yampa River Valley (Colo.)
1
Yellowstone Lake (Wyo.)
34
Yellowstone National Park
637
Yellowstone River
117
Yentna River Watershed (Alaska)
1
Yosemite National Park (Calif.)
2
Yukon-Charley Rivers National Preserve (Alaska)
3
Zion National Park (Utah)
3
underground rivers
7
Location
Place
Abiathar Peak
2
Abrams Creek
4
Abrams Falls
3
Absaroka Range
4
Absaroka-Beartooth Wilderness
1
Alum Cave Creek
1
Alum Creek
7
Amethyst Creek
1
Amphitheater Mountain
1
Andersonville National Historic Site
11
Angelfish Creek
1
Anthony Creek
3
Antler Peak
1
Apollinaris Spring
2
Arnica Creek
5
Artist Point
26
Bacon Rind Creek
1
Bannock Peak, (mountain), Park County, Wyoming, United States
1
Baskins Creek
2
Beach Springs
1
Bead Geyser
1
Bear Gulch
1
Bear River
1
Beartooth Butte
1
Bechler Falls
6
Bechler River
5
Bechler River Ranger Station
7
Beehive Geyser
1
Bent Creek
2
Beryl Spring
2
Big Creek
1
Big Cypress National Preserve
2
Big Hole National Battlefield
1
Big Horn Peak
1
Big South Fork National River and Recreation Area
2
Big Thicket National Preserve
2
Big Thompson River
1
Biscayne National Park
20
Biscuit Basin
13
Bison Peak
1
Bizkaia zubia / Puente Bizkaia
1
Black Growler
1
Black Sand Basin
3
Black Sand Pool
1
Black Warrior Springs
1
Blackstock
1
Blacktail Creek
4
Blacktail Deer Creek
12
Blackwater Creek
1
Bluestone National Scenic River
3
Boiling River
2
Boundary Creek
1
Boxley Valley
1
Bradley Fork
1
Bridge Bay
1
Bridger Lake
4
Brilliant Pool
1
Buffalo Fork
1
Buffalo National River
13
Buffalo Plateau
1
Buffalo River State Wildlife Management Area
1
Bumpus Butte
1
Bunsen Peak
1
Cache Creek
1
Cache la Poudre River
2
Cades Cove
12
Cades Cove Campground
2
Caesar Creek
6
Camp Townsend
2
Cane River Creole National Historical Park
2
Canyon Junction
1
Capitol Hill
2
Cascade Creek
3
Cascade Lake
1
Cascades of the Firehole
4
Castle Geyser
4
Cataloochee Creek
9
Cave Falls
7
Cedar Mountain
1
Chapman Prong
1
Charleston
1
Charleston Harbor
1
Chattahoochee River
1
Chattahoochee River National Recreation Area
1
Cherokee County
2
Chimney Rock
1
Chimneys Campground
2
Chipmunk Creek
3
Chittenden Bridge
15
Chocolate Pots
4
Chromatic Pool
1
City of Gering
1
Clarks Fork Canyon
3
Clear Creek
4
Clearwater Creek
2
Cliff Lake
1
Clocktower Creek
1
Cold Creek Patrol Cabin
2
Colonnade Falls
4
Colorado River
1
Colter Peak
1
Conemaugh Lake
1
Congaree National Park
207
Cooke City
1
Cooke Ranger Station
1
Copper River
1
Couches Creek
2
Crater Hills
1
Crevice Creek
1
Crevice Lake
1
Crowfoot Ridge
1
Crown Butte
1
Crying Creek
2
Crystal Falls
2
Cub Creek
3
Cutoff Mountain
4
Daisy Geyser
3
Dead Indian Hill
1
Death Gulch
3
Deep Creek
4
Delaware River
1
Delaware Water Gap National Recreation Area
3
Delusion Lake
2
Dingle Creek
2
Dinosaur National Monument
1
Dodd Creek Crossing
1
Dome Mountain
1
Dome Rock
1
Dragons Mouth Spring
1
Duck Rock
1
Dudley Creek
4
Dunanda Falls
1
Dunraven Pass
5
Dusenbury Creek
4
Eagle Creek
1
Eagle Nest Rock
2
Eagle Rocks Prong
1
East Bridge Fishing Access Site
1
East Fork Kaweah River
1
East Fork Virgin River
1
East River
1
Electric Peak
5
Elk Antler Creek
1
Elk Creek
5
Elk Fork
1
Elkmont
10
Elkmont Campground
2
Elwha River
5
Eno River State Park
1
Everglades National Park
8
Excelsior Geyser Crater
2
Fairy Falls
1
Fawn Pass
1
Feather Lake
1
Firehole Canyon
14
Firehole Falls
5
Firehole River
59
Firehole River (Upper)
1
Fish Camp Prong
1
Fish Lake
1
Fishing Bridge
26
Floating Island Lake
1
Footbridge Chimney Tops Trail
3
Forney Creek
3
Forney Creek Bridge 1
2
Fort Benton (historical)
1
Fort Moultrie
4
Fountain Paint Pot
1
Fox Creek
1
Frost Lake
1
Frying Pan Spring
1
Gallatin Petrified Forest
1
Gallatin Ranger Station
2
Gallatin River
5
Gallatin River Bridge
1
Gardiner
8
Gardiner River
45
Gardner Canyon
29
Gardner River
24
Gauley River National Recreation Area
3
Geode Creek
1
Geyser Hill
1
Giant Geyser
4
Gibbon Canyon
6
Gibbon Falls
7
Gibbon Meadows
9
Gibbon River
29
Golden Gate
10
Golden Gate Canyon
1
Goose Lake
1
Grand Canyon National Park
7
Grand Canyon of the Yellowstone
70
Grand Geyser
3
Grand Prismatic Spring
1
Grand Teton National Park
2
Grand View
2
Granite Canyon
1
Grasshopper Glacier
1
Grayling Creek
1
Great Smoky Mountains National Park
10
Grebe Lake
1
Green River
1
Grizzly Lake
2
Grotto Falls
1
Grotto Geyser
2
Gunnison River
2
Hall Island (historical)
2
Hampton Plantation State Historic Site
3
Hanging Rock
3
Harpers Ferry National Historical Park
3
Hayden Valley
8
Hazel Creek
4
Heart Lake
4
Heart River
3
Hebgen Lake
1
Hellroaring Creek
6
Hellroaring Mountain
1
Herron Creek
2
Hoback Canyon
1
Hodgenville
4
Hoh River
1
Hoodoo Basin
2
Hoodoo Peak
1
Howard Eaton Trail
6
Huskey Branch
1
Index Peak
2
Indiana Dunes National Lakeshore
3
Inspiration Point
16
Iris Falls
2
Iron Creek
1
Isa Lake
1
Jackson Lake
2
Jardine
1
Jefferson Rock
2
John H Chafee Blackstone River Valley National Heritage Corridor
1
Jones Gap State Park
6
Jones Lagoon
1
Junction Butte
6
Kanati Fork
2
Kephart Prong
1
Kepler Cascades
9
Kingman Pass
1
Kings Mountain National Military Park
7
Kings River
1
Knife River Indian Villages National Historic Site
5
La Rábida
1
Lake Ranger Station
3
Lamar River
32
Lamar Valley
12
Landsford Canal State Park
445
Laurel Mountain
1
Lava Creek
4
Ledge Creek
1
Lees Ferry (historical)
1
Left Fork Deep Creek
1
Lemonade Lake
1
Lewis Falls
2
Lewis Lake
1
Lewis River
9
Little Bighorn Battlefield National Monument
2
Little Bighorn River
2
Little Buffalo Creek
2
Little Colorado River
1
Little Firehole River
1
Little Pigeon River
8
Little River
11
Little River Road
2
Little Tennessee River
2
Lookout Point
9
Lost Creek
1
Lostmans River
7
Lower Blacktail Trail
1
Lower Falls of the Yellowstone River
49
Lower Geyser Basin
4
Lumber River
1
Lumber River State Park
1
Lupine Creek
1
Lynn Camp Prong
2
Madison Canyon
2
Madison Junction
12
Madison Plateau
1
Magnolia Plantation
1
Maloney Point
1
Mammoth
30
Mammoth Cave National Park
256
Mammoth Hot Springs
20
Mammoth Hot Springs Hotel & Cabins
1
Mary Bay
1
Meadow Branch
2
Meigs Creek
2
Meigs Post Prong
1
Menors Ferry
1
Merced River
2
Metcalf Bottoms
6
Middle Creek
1
Middle Prong Little Pigeon River
3
Middle Prong Little River
1
Midway Geyser Basin
4
Miller Creek
1
Mingus Creek
4
Minute Man Geyser
2
Mitchell Pass
1
Molly Island
1
Molly Islands
1
Moose Falls
3
Moran
1
Mount Cammerer
6
Mount Everts
11
Mount Haynes
3
Mount Holmes
3
Mount Jackson
1
Mount Saint Helens National Volcanic Monument
1
Mount Sheridan
3
Mount Sterling
1
Mount Washburn
20
Mud Geyser
1
Mud Volcano
5
National Park Mountain
3
National Park Service Headquarters
1
Nerbioi / Nervión
1
New River Gorge National River
9
New River State Park
1
Newfound Gap
1
Nez Perce Creek
8
Noland Creek Bridge 1
1
Noland Creek Bridge 2
1
Norris Geyser Basin
16
Norris Junction
8
Norris Ranger Station
1
North Fork Virgin River
2
Obed Wild and Scenic River
4
Obsidian Cliff
5
Obsidian Creek
4
Obsidian Lake
1
Oconaluftee River
8
Ojo Caliente Spring
1
Old Bath Lake
1
Old Faithful Geyser
18
Old Faithful Lodge
1
Osprey Falls
8
Otter Creek Bridge, Blue Ridge Parkway
1
Ousel Falls
1
Overhanging Cliff
7
Ozark National Scenic Riverways
2
Pacific Creek
1
Pamet River
1
Parsons Branch
5
Pat O'Hara Peak
1
Peale Island
2
Pebble Creek
2
Pecos River
1
Pelican Cone
2
Pelican Creek
8
Pilot Peak
2
Pleasant Valley
1
Polecat Creek
1
Porcupine Hills
3
Porters Creek
1
Potomac River
2
Prospect Peak
1
Puente de Toledo
1
Pumice Point
1
Quadrant Mountain
1
Ragged Falls
1
Rainbow Falls
6
Ramsey Cascades
26
Ramsey Prong
9
Raven Fork
15
Red Mountains
2
Red Rock
1
Redwood Creek
2
Redwood National and State Parks
1
Riddle Lake
3
Riverside Geyser
3
Road Prong
3
Roaring Fork
1
Roaring Fork Motor Nature Trail
7
Roaring Mountain
1
Rock Creek Bridge
4
Rock Creek Park
1
Ronda
1
Roosevelt Lodge
1
Rowans Creek
1
Rustic Falls
5
Rustic Geyser
1
Saddle Mountain
2
Sapphire Pool Spring
2
Sargent Floyd Monument Historical Marker
2
Scotts Bluff National Monument
2
Sedge Creek
1
Sedge Lake
1
Semi-Centennial Geyser
1
Sentinel Creek
1
Sepulcher Mountain
1
Shark River
16
Shark Valley
2
Sheep Mountain
2
Sheepeater Canyon
1
Sheepeater Cliffs
3
Shenandoah National Park
3
Shoshone Lake
3
Silver Cord Cascade
1
Silver Scarf Falls
1
Silver Tip Ranch
4
Sleepy Gap
2
Slough Creek
9
Smokemont
1
Snake River
6
Snake River Ranger Station
1
Soda Butte Creek
14
Spasmodic Geyser
1
Specimen Creek
1
Specimen Ridge
3
Splendid Geyser
1
Sponge Geyser
1
Spouter Geyser
1
Spruce Flats Branch
1
Steamboat Point
2
Stevenson Island
2
Stone Bridge
2
Straight Fork Raven Fork
1
Swan Lake
1
Swan Lake Flat
12
Sylvan Lake
3
Sylvan Pass
8
Tabcat Creek
2
Tagus River
1
Taiya River
1
Tamiami Canal Number C-4
2
Tendoy Falls
1
Tern Lake
1
Terrace Mountain
1
Terrace Spring
1
Terraced Falls
1
Teton Range
1
The Hoodoos
3
The Needle
1
The Sinks
7
The Sinks Bridge
3
The Trident
1
Thorofare Ranger Station
1
Three River Junction
2
Thunderhead Prong
6
Toklat River
1
Toms Creek
1
Tower Creek
4
Tower Fall
18
Tower Junction
2
Trappers Creek
3
Treasure Island
1
Tremont
5
Trout Branch
3
Trout Creek
4
Tuckasegee River
1
Tuolumne River
1
Turbid Lake
3
Turner River
3
Twentymile Ranger Station
4
Twentymile Ridge
1
Twin Buttes
1
Twister Falls
1
Tye River Gap
1
Uncompahgre Gorge
1
Undine Falls
3
Union Falls
1
United States Fish and Wildlife Service Office of Law Enforcement Atlanta Port
2
Upper Delaware Scenic and Recreational River
1
Upper Falls of the Yellowstone River
40
Upper Geyser Basin
5
Vicksburg National Military Park
4
Virgin River
1
Virgin River Basin
1
Virginia Cascade
1
Virginia Meadows
4
Voyageurs National Park
1
Wahhi Falls, (overfalls), Teton County, Wyoming, United States
1
Washington
1
West Lake
1
West Prong Little Pigeon River
17
West Prong Little River
7
West Thumb Geyser Basin
6
West Yellowstone
1
West Yellowstone District Ranger Office
1
White Lake
1
Willow Park
5
Witch Creek
2
Yampa River
5
Yanceys
2
Yankee Jim Canyon
1
Yellowstone Lake
31
Yellowstone National Park
638
