Lake Agnes Trail

Lake Agnes sits at 11,400 feet in a glacially carved cirque below the Nokhu Crags, making it one of the most visually stunning destinations in Colorado State Forest State Park. The trail climbs steeply from the Agnes Creek trailhead through old-growth Engelmann spruce, crossing bouldery slopes before emerging at the lake shore where mountain goats can frequently be spotted traversing the cliff bands above the water. The rocky summit terrain surrounding the lake shows clear evidence of past glaciation, with polished bedrock, erratics, and classic U-shaped valley topography. The lake itself remains frozen well into July in most years, and snow patches linger on the north-facing slopes throughout the short alpine summer. The Nokhu Crags reflected in the lake surface on a windless morning create one of the most photographed scenes in northern Colorado. The trail gains elevation quickly from the start, making pace and hydration critical considerations for visitors coming from lower elevations. Mountain goats in this area have been studied by wildlife biologists and are generally habituated to human presence, though maintaining a respectful distance is both courteous and required by park regulations. The short distance belies the effort involved given the altitude and steep grade, so allow more time than the mileage suggests.