DENVER – Two of Colorado’s most popular national forests are set to reopen to the public after a 19-day closure because of wildfire threats.

Parts of the Arapaho and Roosevelt national forests shut down last month are scheduled to reopen at 6 a.m. Tuesday, The Colorado Sun reports.

The forests overlap Boulder, Gilpin, Clear Creek, Grand and Larimer counties, which were struck by two of the largest fires of the season.

The Cameron Peak and East Troublesome fires closed the forest areas beginning Oct. 21 after the U.S. Forest Service cited high potential for wildfire and rapid growth.

The East Troublesome fire in Grand County gained speed and grew to more than 156 square miles overnight.

The forests will remain under Stage 2 fire bans, which forbid open flames such as those used in fire pits, wood stoves and charcoal grills. Gas-powered stoves will be allowed.

Other areas affected by recent wildfires will remain closed due to safety concerns, officials said.