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2017 Map of Collins Rim

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

USGS Topo · Published 2017

About this map

Collins Rim and the northern reaches of the Fremont National Forest characterize this high-elevation landscape in Lake County. The drainage network is defined by seasonal and perennial flows including Twentymile Cr, Fifteenmile Cr, and the smaller Barley Camp Cr that carve through the volcanic terrain. Water management is a central feature of the local geography, evidenced by a series of impoundments such as O'Keefe Reservoir, O'Keefe Reservoir Number Four, and O'Keefe Reservoir Number Six.

These reservoirs, along with natural features like Big Lake and Juniper Lake, suggest a landscape adapted for livestock grazing and water storage. Transportation through this part of the forest relies on county routes like Co HWY 3-14a and Long Canyon Rd. Significant relief is found at Round Mtn and across the wide expanse of Big Valley, reflecting the typical basin and range topography of southern Oregon.