1963 Map of Mt. Arriva

About this map

Mt Baker National Forest and Okanogan National Forest meet at a high alpine divide defined by the Cascade Crest. This 1963 field-checked survey documents a primitive landscape of ice and stone before modern conservation designations altered management of the high Cascades. The map details the massive Ragged Ridge and the deep Fisher Creek Basin, showing a network of high-altitude passes such as Easy Pass, Horsefly Pass, and Heather Pass that served as critical traversals for backcountry travel. Notable landmarks include the Lewis Glacier beneath Black Peak, and isolated water bodies like the Silent Lakes and Lake Ann. The presence of the Cascade Crest Trail (Alternate) illustrates the established routes used by early mountaineers and surveyors across these summits, including Mt Arriva and Fisher Peak.