Descriptive InformationSections include: visitors, visitors in buses, Montana Game Commission - 1936, visitors - general, guide parties, park visitors and bears, park visitors at canyon, park visitors photographing elk, park visitors fishing, park visitors and the geyser basins, park visitors and petrified tree, park visitors at Yellowstone Lake, park visitors at Old Faithful, park visitors, guide parties, naturalist education program, auto caravan, modes of transportation - railroad transportation, transportation - miscellaneous, accidents, automobile accidents, and accidents - other. Inclusive dates of creation are 1920-1957.
