Boulder County offices, including courts, will close for President's Day but essential services remain active.

Boulder County confirms no new oil and gas development since 2012, with proactive inspections and well plugging efforts.

Boulder County commissioners are exploring the possibility of returning buffalo to open space land and working with members of Cheyenne and Arapaho tribes on the reintroduction. The commissioners ...

The victim, Tomas Mejia-Martinez, died on the scene after being struck in the head-on collision at 6:28 p.m. May 30 in unincorporated Boulder County. Sharon Mire Hwang, 26, has been arrested on ...

Residents in and near Boulder County experienced their most bitter temperatures of the season in recent days, with temperatures dipping below zero. But although some events were canceled by the ...

Boulder AIR CEO and research scientist Detlev Helmig said the county's move to defund the program without warning was a shock. "Yeah, this decision was surprising to me," Helmig said. "We feel ...

Uncertainty was the common thread Tuesday as business executives from the Boulder Valley converged to discuss the real and ...