Isabelle Glacier Professional Review and Guide
"I must admit I have a certain passion for glaciers, even small ones, but if I had to choose the one glacier in Colorado that stirs my soul the most, it would have to be Isabelle Glacier. Isabelle lies hidden in a high, isolated bowl-shaped basin at the top of the South St. Vrain drainage. Surrounded on three sides by the rugged Shoshoni, Apache, and Navajo Peaks, and pinched off on the fourth side by the Niwot Ridge, Isabelle Glacier could not be in a more spectacular setting.
The glacier is also intriguing from a geological point of view. It is fed by two opposing snowfields on the slopes of Shoshoni and Apache Peaks, and in the bottom of the bowl where the ice flows meet there are several large cracks that appear to be stress lines. Under the cracks lies a frozen lake that partially melts during the summer months and flows out under the moraine on the southeast side of the bowl. The pale, milky “glacier blue” color of the partially melted ice provides a striking contrast to the deep blue Colorado sky in late summer, and the trail ends at a perfect vantage point on the glacier’s southern side. The view is stunning."