1919 Map of Mt St Helens

About this map

Mt St Helens stands as the central landmark of this 1919 survey, decades before its modern eruptive history altered the surrounding landscape. The area is dominated by the Columbia National Forest, where the headwaters of the Toutle River, Lewis River, and Green River carve through high volcanic peaks. Early industrial activity is evidenced by the Polar Star Mine and Sweden Mine tucked into the ridges near Goat Mountain, while small settlements like Kosmos and Nesika represent the sparse human footprint in the northern river valleys.