Firefighters back off growing fires in dangerous dead forests north of Pagosa Springs in southwestern Colorado

Federal land managers have declared a full suppression approach to both fires, even though the national policy calls for letting fires in remote forests burn when that can be done safely — in order to let forests benefit ecologically from fire and become more resilient and healthy.

But the practical difficulties of suppressing the Quartz fire, deep in the South San Juan Wilderness, has prevented ground and aerial attacks.

“There is no way to engage the fire because it is extremely deep in the wilderness. There are no roads. No trails. It is burning in extremely thick timber that is mostly standing dead and downed trees. It is extremely steep terrain. We’re not going to put firefighters at risk,” San Juan National Forest spokeswoman Lorena Williams said.