ALPINE, Calif. — In an effort to prevent wildfires in at-risk areas ahead of this year’s wildfire season in San Diego, an extensive tree and shrub removal is underway in the East County that clears ...

LOVELAND PASS, Colo. — They’ve been referred to as “winter quicksand,” but many people don’t know how dangerous tree wells are until they’re stuck in one. “Once you’re down inside one of these tree ...

We all know what tree line is in Colorado: the point above which trees don’t grow. But what determines tree line: Cold? Soil conditions? Precipitation? And is tree line different in various parts of ...