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2014 Map of Posy Valley

Name: 2014 Topographic Map of Posy Valley
Creator: U.S. Geological Survey
Published: 2014
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2014

About this map

Posy Valley and the surrounding agricultural landscape define this corner of Baker County, where the high desert meets the irrigated plains of Pine Valley. The settlement of Halfway sits at the northwest edge of the map, connected to the southeastern river reaches by the Baker-Copperfield Hwy. Water management is central to the area's layout, evidenced by the extensive McMullen Ditch and numerous small impoundments like Laird Reservoir and Densley Reservoir that dot the hillsides.

To the south, the terrain descends sharply into the canyons of the Snake River and Powder River, which meet at the Brownlee Reservoir. This area includes the site of Robinette, positioned near the confluence where the Oregon and Idaho border follows the river's path. The map also traces intricate gulch systems such as Timber Canyon and Tarter Gulch, which provide drainage from the higher plateaus down to the reservoir waters.