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2023 Map of O'Brien

Name: 2023 Topographic Map of O'Brien
Creator: U.S. Geological Survey
Published: 2023
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2023

About this map

The West Fork Illinois River and its many tributaries, including O'Brien Creek, define the geography of the Illinois Valley in Josephine County. The settlement of O'Brien sits as a central hub for the surrounding landscape, which is heavily shaped by the boundaries of the Siskiyou National Forest. To the southeast, the historic area of Takilma is situated near French Flat and the East Fork Illinois River, suggesting a legacy of settlement near the river forks.

Prominent peaks and gulches provide a high-resolution view of the local topography, with Sanger Peak and Bearcamp Ridge rising above the drainage basins. Notable landmarks such as the Illinois Valley Airport and a network of forest trails, including the Buckskin Peak Trl, indicate the area's modern infrastructure and its use for both transit and forest management. Small gulches like Sailor Gulch and Fry Gulch point toward the region's long history of local place-naming in the timber and mineral-rich hills of southwestern Oregon.