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Call Number Author Topic Genre Region Era

By Alphabetical By Topic By Genre By Era

20th century 6,552 View Records 19th century 3,229 View Records 21st century 1,771 View Records 18th century 1,111 View Records Civil War, 1861-1865 985 View Records 1945- 795 View Records Cretaceous 792 View Records 1945-1989 650 View Records 17th century 649 View Records 1933-1945 539 View Records Revolution, 1775-1783 516 View Records 1989- 436 View Records 16th century 433 View Records Tertiary 430 View Records 2009- 410 View Records 1946- 403 View Records 2001-2009 389 View Records Quaternary 363 View Records 1991- 352 View Records Colonial period, ca. 1600-1775 347 View Records To 1500 329 View Records Paleozoic 309 View Records Precambrian 304 View Records Cenozoic 280 View Records 2000- 267 View Records Permian 237 View Records 1960- 223 View Records 1993-2001 223 View Records Eocene 223 View Records 1918-1945 219 View Records 1981-2001 218 View Records 1564-1616 214 View Records Jurassic 206 View Records Miocene 199 View Records Pennsylvanian 199 View Records Mesozoic 197 View Records 1951- 191 View Records 1929 186 View Records Ordovician 179 View Records Pleistocene 172 View Records 1945-1953 167 View Records Mississippian 163 View Records 1979- 161 View Records Devonian 160 View Records 1949- 158 View Records 1980- 156 View Records 1809-1865 152 View Records 1783-1865 150 View Records 1953-1961 148 View Records Triassic 140 View Records 1990- 137 View Records 1981-1989 136 View Records Civil War, 2011- 136 View Records 1882-1945 134 View Records 2001- 133 View Records Early modern, 1500-1700 133 View Records 1993- 127 View Records 1947- 125 View Records To 1775 124 View Records 2003- 119 View Records 1775-1865 117 View Records 1997- 116 View Records 1775-1783 115 View Records 1960-1980 112 View Records Revolution, 1789-1799 110 View Records Cambrian 109 View Records Pliocene 109 View Records 1969-1974 104 View Records Holocene 104 View Records World War, 1939-1945 103 View Records 1969- 102 View Records 1970- 102 View Records 1980-2020 101 View Records To 146 B.C. 101 View Records 1913-1994 98 View Records Oligocene 98 View Records To 1846 97 View Records 1952- 96 View Records Proterozoic 96 View Records 1917-1963 95 View Records 1976-2002 94 View Records 1975- 93 View Records 1981-1993 92 View Records 1865-1918 91 View Records 1988- 91 View Records 2016 91 View Records Carboniferous 91 View Records To 1848 90 View Records War of 1812 90 View Records 1949-1976 89 View Records 1963-1969 87 View Records 1948- 86 View Records 1959-1990 86 View Records 1965- 85 View Records Silurian 85 View Records 1815-1861 84 View Records 2002- 83 View Records 1858-1919 82 View Records 1889-1945 82 View Records 1986- 80 View Records

Alaska 30 Colorado 29 Utah 26 New Mexico 22 Morrison Formation 20 West (U.S.) 16 Oregon 10 San Juan Basin (N.M. and Colo.) 10 California 8 Colorado Plateau 8 Montana 7 Wyoming 7 Idaho 6 United States 6 Talkeetna Mountains 5 Arizona 4 Cook Inlet Region 4 Powder River Basin (Wyo. and Mont.) 4 Saudi Arabia 4 Lisburne, Cape 3 Navajo Indian Reservation 3 Nevada 3 San Miguel County 3 Wanakah Formation 3 Antarctica 2 Arapien Shale (Utah) 2 Barboursville Basin 2 Bighorn Mountains (Wyo. and Mont.) 2 China 2 Cuba 2 Culpeper Basin (Va. and Md.) 2 Cutler Formation 2 Dinosaur National Monument (Colo. and Utah) 2 Gallup 2 Great Plains 2 Gulf Coast (U.S.) 2 Gulf States 2 Kansas 2 Mississippi 2 Navajo Sandstone 2 North America 2 Pensacola Mountains 2 Powder River Watershed (Wyo. and Mont.) 2 San Juan County 2 Sandoval County 2 Sierra Nevada (Calif. and Nev.) 2 Southern States 2 Southwestern States 2 Stone County 2 Texas 2 Virginia 2 Alaska Peninsula (Alaska) 1 Ambrosia Lake (Lake) 1 Ambrosia Lake Region 1 Baltimore 1 Barents Sea 1 Bighorn Basin (Mont. and Wyo.) 1 Black Canyon of the Gunnison National Park Region 1 Boulder District 1 Brooks Range 1 Canada 1 Cook Inlet (Alaska) 1 Diablo Range 1 Dolores County 1 Durango Region 1 Entrada Sandstone 1 Garfield Co 1 Germany 1 Grand County 1 Grant County 1 Grants Region 1 Haynesville Shale 1 Hebei Sheng 1 Inner Mongolia 1 Iraq 1 Jackson Hole 1 Jura Mountains (France and Switzerland) 1 Kane Co 1 Laramie Basin 1 Liaoning Sheng 1 Maryland 1 McKinley County 1 Mexico 1 Mexico, Gulf of 1 Michigan 1 Mississippi River Delta (La.) 1 Missouri 1 Mongolia 1 Montezuma County 1 Montrose County 1 Mu Us Desert (China) 1 National Petroleum Reserve 1 New Jersey 1 Newark Basin 1 Northern Hemisphere 1 Ordos Desert 1 Ouray Region 1 Pacific Coast (U.S.) 1 Persian Gulf 1 Placerville Region 1