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2020 Map of Mount Arriva

Name: 2020 Topographic Map of Mount Arriva
Creator: U.S. Geological Survey
Published: 2020
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2020

About this map

North Cascades National Park and three adjacent national forests converge at this high-altitude junction of Skagit, Okanogan, and Chelan counties. The high-relief terrain is anchored by Mt Arriva and Fisher Peak, with the Mesahchie Glacier persisting on the northern slopes of Ragged Ridge. This 2020 survey illustrates a landscape defined by glacial activity and drainage patterns, where the Methow River and Granite Cr collect runoff from numerous alpine basins.

Transit through the area is restricted to narrow mountain corridors such as the Fisher Creek/Easy Pass trail and the storied Pacific Crest National Scenic Trail, which skirts the eastern boundary. The map provides precise locations for remote water bodies like Silent Lakes, Wing Lake, and Lewis Lake, alongside notable crossings such as Easy Pass and Heather Pass. This modern topographic study serves as a definitive record of contemporary wilderness boundaries and peak elevations in the North Cascades.