Map in the library The Map Library collection consists of an estimated 200,000 maps, over 500 atlases and geographic reference books, and a growing collection of digital spatial data.

We collect general and thematic maps and atlases at small and large scales, mostly from the 19th, 20th and 21st centuries, and related reference materials such as gazetteers. The Map Library is a full Federal Depository Library and the majority of our maps are acquired through the Federal Depository Library Program.

The University of Colorado Boulder is the regional depository for the state of Colorado. The Map Library houses the maps received through the Federal Depository Library Program from agencies such as USGS, BLM, U.S. Forest Service, Department of Transportation, NGA (formerly NIMA, DMA, and AMS) and CIA.

The Map Library collection also contains Sanborn Fire Insurance maps of Colorado, Historical Aerial Photographs of Colorado, Mining Maps of Colorado, facsimiles of historical maps, print satellite images, topographic maps on CD-ROM and digital geospatial data.

The digital data collection is founded on reference GIS datasets: the ESRI base datasets, the USGS/AGI Global GIS datasets, DOQQs for much of the Front Range of Colorado, DRGs for all of Colorado and DEMs for the entire U.S. The collection also contains thematic and more detailed data for certain areas.

U.S. Geological Survey Maps

The Map Library owns the entire U.S. Geological Survey 7.5 minute topographic map series as well as the 1:100,000 and 1:250,000 scale topographic series, and thematic (geologic) maps series. Older editions of USGS topographic and mining area maps (from the 1880s through the 1960s) are also available for all states. The 1:50,000 and 1:100,000 scale county map series are available for Colorado

Subject Areas

The Map Library collection covers a broad range of subject areas, including geography, geology, history, architecture/urban planning, environmental studies, genealogy, travel and recreation.

Access to the Map Library Collection

The Map Library's collection is only partially cataloged; about 50% of the maps can be accessed through the Libraries' catalog. Begin searching in Chinook and if you don’t find what you need, please contact us via email at Most of the maps in the Map Library collection can be checked out.

Circulation Policy

Maps and books can be checked out for 14 days (except fragile or rare maps and reference books, which don’t circulate).