
Mason Valley serves as the focal point of this Nevada landscape, where the confluence of the West Walker River and East Walker River creates a fertile agricultural corridor bounded by the high peaks of the Singatse Range. The settlement patterns here are defined by water management, with an intricate network of irrigation channels including the Main Fox Ditch, Greenwood Ditch, and Spragg-Woodcock Ditch supporting the valley floor. The town of Yerington sits as the central hub, supported by the outlying communities of Weed Heights, Mason, and Nordyke. To the west, the terrain rises sharply toward Singatse Peak and Newhouse Peak, cut by deep drainages like McConnell Canyon and Western Nevada Canyon. This survey captures the modern layout of the region, including the Yerington Municipal Airport and the Lyon County Justice Complex, while preserving the locations of legacy sites like the Yerington Cem.
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This is the sole edition of this map. No revisions or reprints were ever made.