A wide footbridge over Boulder Brook leads to the Sprague Lake Loop Trail, a 0.7-mile, hardpacked dirt and gravel trail in Rocky Mountain National Park near Estes Park, perfect for wheelchairs, ...

A photograph of the Boulder Brook watershed, with Long's Peak, a "fourteener," in the background right, Rocky Mountain National Park, Colorado. Sueker, J.K., 1996. Isotopic and chemical flowpath ...