A federal judge Thursday rejected a yearslong lawsuit brought by a group of Republicans challenging the constitutionality of Colorado’s vote...

Thousands of people are expected to participate in more than 70 No Kings protests Saturday in Colorado, joining millions across the United S...

Five years ago, when Colorado’s economy was looking far sunnier than predicted, state leaders tackled a problem that for years had troubled...

Under the rusty cliffs of Marble Canyon, the start of the Grand Canyon in Arizona, a nondescript river measurement gauge has been tracking t...

The Colorado General Assembly has a chance to offer targeted, commonsense protection to the charities in our state by decoupling Colorado’s...

Colorado 115 reopened to traffic Thursday afternoon after officials shut down the road, connecting Colorado Springs to Penrose, for more tha...

Wildfires in Nebraska have caused a large haze of smoke across Colorado on Thursday.

The backlash against data centers has opened a rift between Colorado’s leading environmental groups and labor unions. At the core of the...

A Colorado mother has filed a lawsuit against Highland Canine Training LLC for allegedly failing to deliver a service dog for her special ne...

Gov. Jared Polis signed a bill into law Wednesday that will make it easier for Colorado public schools, colleges, universities and other org...

A beaver no-kill bill pitched as a way to expand Colorado’s wildfire and drought mitigation efforts failed in a state legislative committee...

The University of Colorado’s Board of Regents could vote in the coming months on whether to grant collective bargaining rights to the univer...

A Colorado law that cuts greenhouse gases from the state’s dirtiest industrial smokestacks has surpassed its goals six years ahead of schedu...

A malfunctioning car that pulled to the shoulder of Colorado 115 likely ignited the fast-moving wildfire now burning across more than 7,000...

Google said Tuesday that it is entering the Colorado quantum realm in what seems like a very tiny way: It hired a quantum physicist in Bould...