The documents may have evidence of residual plutonium contamination and other ongoing environmental dangers.
A deal nearing completion means residents in the southern Colorado city could finally have access to their hometown mountain.
The answer lies in how railroads were built across the American West.
More Colorado state parks will hop on the reservation-only camping bandwagon in 2019 after a successful pilot program this year.
The wildlife refuge's past as a Superfund site has caused concern among environmental groups.
Starting Jan. 1, there will be varying increases to state licenses and annual park passes.
Polis made one of his first public appearances as Colorado's governor-elect at the Outdoor Retailer Winter Market.
The bike-rack entrepreneur and outdoor-recreation activist is moving his Front Range company to the Western Slope.
The fish has a reputation for being fun to catch, but they're causing a lot of trouble for the Pastorius Reservoir.
Shuttle details, including prices, will be announced in coming months.