Map images provided by: worldatlas.com

Locations of Colorado quadrangle maps:
(see bottom of page for a 1:2,500,000 scale image map of the state)

Map Search Engines & Online Maps

Also see http://www.sitesatlas.com/Maps/Info/usa.htm state pages. This is an excellent site that includes road maps of each state.

Map Case Maps
The map cases are on the third floor of the library, down one floor from the main floor. As you descend the main stairwell, bear left.

USGS Topo Index/Ordering Use the USGS Store to locate maps by clicking on "Enter USGS Store," then clicking on the "Map Locator" image in the store to help you find a map.

7.5-minute 1:24,000-scale topographic quadrangles - (case 6, drawer 3) - best known, most widely-used large-scale series.

15-minute 1:50,000-scale topographic quadrangles - (case 11, drawer 4) - this series is "dead", or discontinued.

30 x 60 minute 1:100,000-scale quadrangles - (case 12, drawer 4) - we have coverage of nearly the entire U.S. in this intermediate-scale topographic series. Interfiled is a BLM series showing surface management and surface-minerals management status; part of the Topographic Special series.

U. S. Series (topographic, 1:250,000) - (case 15, drawer 4) - small-scale maps covering the U.S., 1 degree x 2-degree; part of the Topographic Special series.

State Map series (shaded relief, 1:500,000) - (case 15, drawer 12) - These maps are scaled 1:500,000, except for Alaska, and are a modified version of the planimetric edition; part of the Topographic Special series.

Set of 100 Topographic Maps Illustrating Specified Physiographic Features - (case 5, drawer 2) - some quadrangle maps for this state are included within this set.

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1:2,500,000 U.S.G.S. 1972 limited update 1990