Authorities were tipped off to Instagram images of a woman painting on rocks and trees in national parks across the West.
Public school superintendents across Colorado say the amount of time spent testing is cutting into teaching time in the classroom.
This weekend's arts happenings around Colorado include live music set to Hitchcock's final silent film and a look at the future of agriculture on the eastern plains.
The Mont Alto Motion Picture Orchestra pianist and composer talks to CPR about how he creates musical scores for silent films.
With the state’s top races still locked in a dead heat, voter turnout efforts could be the X factor in this election.
The girls' voyage has mystified many in the U.S., and has been even more troubling among Aurora's Somali and Sudanese immigrants.
Thirty-eight percent of Colorado hospitals earned "A" grades.
A smoldering mattress ignited propane tanks near the tracks, authorities say.
Federal figures show unemployment rate falls in all of Colorado's metro areas.