Colorado Maps
There are wonderful maps here, divided up by region.
Source: Colorado Tourism Site

Outline Map of Colorado
This is a basic black and white map showing the county lines as its only details.
Source: Indiana State University

Annual Average Precipitation Map
This map shows the average annual rainfall in the state.
Source: Spatial Climate Analysis Service, Oregon State University

Colorado State Map
If you need a map that shows the major freeways in Colorado, this is it!
Source: World Sites Atlas

Colorado State Map
This is a detailed color map of Colorado showing all the major highways.
Source: Colorado Tourism Office

Merriam Webster Atlas Map
This atlas page shows the Colorado state map, some quick facts, and a nice explanation of the symbolism of the state flag.
Source: The New York Times and Merriam Webster