• 2,670 Map Library (Robinson)
• 906 Geology and Geophysics Library (Leith)
• 270 Steenbock Library
• 210 Wisconsin Historical Society Archives
• 147 Wisconsin Historical Society Library
• 36 Verona Shelving Facility
• 32 Memorial Library
• 3 Middleton Shelving Facility
• 2 Temporary Relocation Library
• 1 Ebling Library

• 103 Journals, Magazines, Newspapers
• 61 Books
• 60 Microforms
• 3 Remote Sensing Images
• 1 Photos, Drawings, Prints

• 589 Geology
• 498 Roads
• 343 Streets
• 193 Outdoor recreation
• 131 Land use, Rural
• 121 Mines and mineral resources
• 100 Indians of North America
• 95 Claims
• 94 Recreational use
• 94 Wetlands
• 86 Motor vehicles
• 82 Geomagnetism
• 78 Real property
• 74 Forest roads
• 71 Faults (Geology)
• 69 Trails
• 68 Wildfires
• 67 Soils
• 56 Aeronautical charts
• 55 Fires
• 55 Off-road vehicle trails
• 54 Natural disasters
• 51 Geology, Stratigraphic
• 51 Harbors
• 50 Deserts

• 3,313 Geological Survey (U.S.)
• 852 United States. Forest Service
• 229 California. Department of Water Resources
• 201 United States. Bureau of Land Management
• 145 United States
• 142 United States. Bureau of Land Management. California State Office
• 130 Automobile Club of Southern California
• 115 United States. National Park Service
• 104 California State Automobile Association. Cartographic Department
• 95 United States. Indian Claims Commission
• 92 National Wetlands Inventory (U.S.)
• 77 California. Division of Mines and Geology
• 75 H.M. Gousha Company
• 63 United States. Forest Service. Pacific Southwest Region
• 62 Dibblee, T. W. (Thomas Wilson), 1911-2004
• 59 Rand McNally and Company
• 57 Metsker Maps
• 55 United States. Department of Housing and Urban Development
• 53 California State Automobile Association
• 53 Clark, Perry S
• 52 United States. Bureau of Soils
• 51 United States. Defense Mapping Agency. Hydrographic/Topographic Center
• 51 United States. National Ocean Service
• 49 United States. Bureau of Land Management. California Desert District
• 48 AAA (Organization : U.S.)

• 6,080 English
• 26 Spanish
• 10 German
• 7 French
• 2 Italian
• 1 Japanese
• 1 North American Indian (Other)
• 1 Swedish
• 1 Unknown

• 294 Nevada
• 141 San Francisco Bay Area
• 124 San Bernardino County
• 102 Los Angeles
• 99 Lassen National Forest (Calif.)
• 99 Oregon
• 99 San Francisco
• 96 Los Padres National Forest (Calif.)
• 89 Inyo National Forest (Calif. and Nev.)
• 88 Arizona
• 87 Plumas National Forest (Calif.)
• 86 Los Angeles County
• 83 Los Angeles Metropolitan Area
• 78 San Francisco (Calif.)
• 78 Shasta National Forest (Calif.)
• 77 Los Angeles Metropolitan Area (Calif.)
• 77 Modoc National Forest (Calif.)
• 76 San Diego County
• 75 Trinity National Forest (Calif.)
• 72 San Francisco Bay Area (Calif.)
• 72 U.S
• 65 Riverside County
• 64 Los Angeles (Calif.)
• 63 Klamath National Forest (Calif. and Or.)

Limit year range