• 1 College Library

• 1 DVDs

• 2 Extinction (Biology)
• 2 Geology, Stratigraphic
• 2 Mammoths
• 1 Climatic geomorphology
• 1 Footprints, Fossil
• 1 Fossils
• 1 Glacial epoch
• 1 Global warming
• 1 Ground sloths
• 1 Landforms
• 1 Mastodons
• 1 Paleoecology
• 1 Paleontological excavations
• 1 Paleontology
• 1 Parks
• 1 Permafrost ecosystems
• 1 Restoration ecology
• 1 Scientists

• 1 British Broadcasting Corporation
• 1 Bullfrog Films
• 1 Denver Museum of Nature and Science
• 1 Dugan, David
• 1 Falk, Bella
• 1 Grant, Eleanor
• 1 Griswold-Tergis, Luke
• 1 Jed Riffe Films
• 1 Johnson, Kirk
• 1 Malone, David
• 1 Mammoth Step Productions
• 1 National Geographic Television & Film
• 1 PBS Home Video
• 1 Paterson, David
• 1 Public Broadcasting Service (U.S.)
• 1 Riffe, N. Jed
• 1 WGBH Educational Foundation
• 1 Windfall Films (Firm)

• 4 English
• 1 Russian

• 1 China
• 1 Colorado
• 1 New Mexico
• 1 North America
• 1 Russia (Federation)
• 1 Snowmass Village
• 1 Tibet Autonomous Region
• 1 White Sands National Park (N.M.)

• 2 Documentary films
• 2 Documentary television programs
• 1 Feature films
• 1 Nature television programs
• 1 Nonfiction films
• 1 Nonfiction television programs
• 1 Video recordings for the hearing impaired

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