But another sight among the aspen trees is giving natural resource managers in the Lake Tahoe Basin pause. In June 2018, scientists first noticed that aspen trees around the basin were looking more ...

JT Thomas It's a relentlessly sunny day in the Rocky Mountains, and here at 9,000 feet, on the Grand Mesa in western Colorado, the aspen trees should be casting a shadow. But something is wrong in ...

Steps from the Colorado ski town of Breckenridge, Sawmill Reservoir is a gorgeous 10-acre lake perched at an elevation of nearly 10,000 feet. Surrounded by stunning pine and aspen trees ...