2014 Map of Mount Arriva

About this map

North Cascades National Park and the surrounding wilderness of the Okanogan National Forest converge in this high-altitude landscape. The map centers on the meeting point of Skagit, Okanogan, and Chelan counties, defined by the towering summits of Mt Arriva and Black Peak. Glacial features are prominent, including the Mesahchie Glacier and Lewis Glacier, which feed into complex drainage systems like Fisher Creek Basin and the headwaters of the Methow River. The area serves as a critical junction for high-country travel, with the N Cascades Hwy providing vehicle access to the Easy Pass Trailhead, while the Pacific Crest National Scenic Trail traverses the eastern edge. This survey documents the mid-2010s state of alpine environments, showing the proximity of permanent snowfields and glaciers to named passes like Horsefly Pass and Heather Pass.