Lake Isabelle (10,910′), Front Range
Lake Isabelle lies hidden in a high, isolated bowl-shaped basin at the top of the South St. Vrain drainage in the Brainard Lake Recreation Area. It lies at tree-line in a stunning alpine valley surrounded by Navajo (13,409′), Apache (13,441′) and Shoshoni (12,967′) peaks. The Continental Divide is located just west of the lake, running along the high peaks above the valley.
Niwot Ridge, 13,409-foot Navajo Peak, Navajo Glacier, 13,441-foot Apache Peak and 12,967-foot Shoshoni Peak, looking from left to right
GPS Route with Elevation
From the Long Lake Trailhead, the trail begins its relatively gentle ascent up to Long Lake. After a quarter-mile of trekking, the trail intersects the Jean Lunning Trail, which will take you to and around Long Lake. This area is known for moose sightings. Avoid the Jean Lunning Trail and continue to the right uphill to Lake Isabelle.
After approximately 1 more mile, the trail intersects the Jean Lunning Trail for the second time. Again, continue towards Lake Isabelle and Pawnee Pass, bypassing the Jean Lunning Trail. Lake Isabelle is just another .9 miles beyond this trail junction. From the lake you have the option of continuing further up the trail to reach Isabelle Glacier.