2017 Map of Many Glacier

About this map

Many Glacier sits at the heart of this high-altitude landscape, where the seasonal movement of hikers and stock is traced through a complex network of trails and mountain passes. The map documents the intricate hydrology of the Lewis Range, dominated by the Swiftcurrent Glacier and the Grinnell Glacier, which feed a chain of alpine waters including Iceberg Lake, Swiftcurrent Lake, and Lake Josephine. A significant feat of early wilderness engineering is visible at Ptarmigan Tunnel, providing passage through the formidable Ptarmigan Wall.