Gov. Hickenlooper warns that even an average year means fires could scorch more than 155 square miles, or 100,000 acres.

Danger may persist for several more weeks because much of the snow in the Rockies hasn't started to melt.

The state Department of Revenue says that Colorado sold nearly $19 million worth of recreational pot in March, up from about $14 million worth of recreational pot in February.

Scientists have found that oil and gas fields along Colorado's Front Range have been emitting three times more methane and nearly eight times more cancer-causing benzene than previously thought.

State insurance regulators say they will give health insurers another year to offer plans that don't meet new federal requirements.

Denver is joining other Colorado counties no longer honoring requests from federal immigration authorities to continue to detain someone once they're eligible to be released from their original charges.

Four men associated with the business have been indicted on international money laundering charges.

Prosecutors say the men wired money from Colombia to finance marijuana cultivation and distribution and tried to conceal the source of more than $400,000 that they planned to use to buy a Denver grow facility.

Organizers have agreed to post rules at the festival outlining that public consumption of marijuana is illegal and Denver police say they will focus on ensuring safety rather than issuing mass-citations for public consumption.