1989 Map of Chiwaukum Mountains

About this map

The Chiwaukum Mountains dominate this high-elevation landscape, where deep glacial basins and sharp ridgelines define the interior of the Wenatchee National Forest. This 1989 provisional survey captures the transition between the Alpine Lakes Wilderness and the surrounding forest lands, focusing on the intricate hydrology of the region. A dense network of high-country lakes, including the cluster around Loch Eileen, Lake Donald, and Lake Ethel, feed into drainage systems like Whitepine Creek and the South Fork Chiwaukum Creek. The geography is characterized by prominent divides such as Icicle Ridge and Mc Cue Ridge, which separate the rugged valleys. For researchers, the map provides a clear record of established access routes during the late 1980s, including numerous Pack Trails and a Footbridge over Icicle Creek, essential for navigating the complex terrain between Snowgrass Mountain and the southern slopes of Grindstone Mountain.