The Abyss Trail is a magnificent route into the Mount Evans Wilderness Area winding up valleys and across streams on the way up to a steep ridge leading to Abyss Lake. Abyss Lake Trail is also known as #602. It is a 8.8 mile one way horseback ride. The elevation starts at 9620 feet and goes to a high point, at the lake, of 12620 feet.
To reach the Abyss Trailhead from Denver, drive southwest on US 285 approximately 40 miles to Grant. Turn right (north) onto Park County 62 (towards Guanella Pass), and drive 5.5 miles to the trailhead. The trailhead is on the east (right) side of the road and is located just south of Burning Bear Campground. There is a large parking area at the trailhead.
Overall, Abyss Trail is the 4th most popular horse trail of all 66 horseback rides in Colorado.