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1959 Map of Three Sisters, 1961 Print
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1959 Map of Three Sisters

USGS Topo · Published 1961

About this map

South Sister and Middle Sister dominate this high-altitude landscape of the Cascade Range, which is defined by massive lava flows and numerous volcanic features. At the time of this late-1950s survey, the area was largely accessible by a network of trails, including the Oregon Skyline Trail and Obsidian Trail, reflecting its development as a managed wilderness under the Willamette National Forest and Deschutes National Forest. The map documents a system of recreational infrastructure and mountain lookouts, such as Sunshine Shelter and the Scott Mtn VABM Lookout. Geologic markers like Rock Mesa and the wide Wickiup Plain illustrate the complex volcanic history of the region. Scattered seasonal sites such as Knobs Sheep Camp and several forest camps indicate the specialized land use in this high-desert-to-mountain transition during the mid-20th century.

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Map Details

Date Portrayed1959
Date Published1961
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:62500
Physical Dimensions16.7 x 20.7 inches

Editions of this 1959 Three Sisters Map

Historical Maps of Lane County Through Time

222 maps found

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain