Aerial of South fort bastion and moatDry Tortugas National Park; National Park ServiceFort Jefferson; A south fort bastion & the moat at Fort Jefferson; Leo A. Frank; 3/28/37
Aerial view of Fort JeffersonDry Tortugas National Park; National Park ServiceFor 1971-;Fort Jefferson national Monument; Everglades National Park photo; give credit to National Park Service
Arches and casements Dry Tortugas National Park; National Park ServiceFort Jefferson National Monument gun replacements and archways within the casements
Barracks in Fort parade groundsDry Tortugas National Park; National Park ServiceFort Jefferson N.M. The view of the large barracks building in the parade ground; Frank, 3/28/37
Bulldozer and tractorDry Tortugas National Park; National Park ServicePhoto of bulldozer (small and farm tractor). Tractor used to haul and lay "Spoil Pipe"
Bulldozer spreading land over oilDry Tortugas National Park; National Park ServiceSmall bulldozer used to spread land fill over oil - caused [illegible]; The dredge pumps [illegible] in small piles - the dozer spreads it evenly over the oil
Close-up of sand and shell on beachDry Tortugas National Park; National Park Servicephoto shown sand and shell [illegible] dredged from the side of Long Key and in place [illegible] oil spill
Close-up side view of fish, Fort Jefferson, circa 1960Everglades National Park; National Park ServiceClose up, side view of fish underwater and coral in background; circa 1950-70's; "Underwater scenes at Fort Jefferson" Locality: Fort Jefferson Photo Source: Keywords: Marine, Wildlife.
Crumbling buildings within Fort JeffersonDry Tortugas National Park; National Park ServicePart of the interior of Fort Jefferson, showing the large barracks building Fort Jefferson National Monument; Leo A. Frank; March 28, 1937