2020 Map of Marshall Peak

About this map

Marshall Peak stands as the central topographic focal point in this high-elevation region where the borders of Elmore, Blaine, and Camas counties converge. The landscape is defined by the headwaters of several significant drainages, including the S Fork Boise River and Johnson Creek. This modern survey documents the rugged intersection of the Boise National Forest and the Sawtooth National Forest, showing a territory primarily navigated by primitive routes like the Johnson Creek Jeep Trail and the Ross Fork Horse Trail. Pockets of water such as Perkins Lake and Alturas Lake-Mattingly are tucked into high glacial basins, while numerous gulches like Eureka Gulch and Mill Gulch suggest a history of resource exploration. The absence of paved infrastructure highlights the preservation of this alpine environment in the early 21st century.