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2017 Map of Alturas Lake

Name: 2017 Topographic Map of Alturas Lake
Creator: U.S. Geological Survey
Published: 2017
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2017

About this map

Sawtooth Valley serves as a high-elevation alpine basin where the headwaters of the Salmon River gather. This 2017 survey depicts a landscape defined by the drainage systems of the Sawtooth National Forest, specifically the eastern slopes of the Sawtooth Range. Large glacial lakes including Alturas Lake, Pettit Lake, and Perkins Lake dominate the western portion of the sheet, fed by a network of creeks like Alturas Lake Cr and Vat Cr.

Evidence of human habitation and infrastructure is concentrated along the valley floor, where Sawtooth Cem and the Smiley Creek Airport sit near the confluence of Smiley Cr and Salmon River. The map meticulously tracks the interface of public and private lands across the Custer and Blaine County line, detailing forest service routes such as Alturas Creek Rd and Cabin Creek Rd that provide access to the surrounding peaks and backcountry water sources like Pole Cr and Beaver Cr.