
Hayfork and Hyampom serve as central points in this early 1980s look at the steep river drainages where Humboldt and Trinity counties meet. The landscape is defined by the deep canyons of the Trinity River and the South Fork Trinity River, showing a dispersed network of river settlements like Salyer, Hawkins Bar, and Big Bar linked by the winding route of highway 299. This era of the Trinity National Forest and Six Rivers National Forest shows the area's ongoing mining legacy through the location of the Yellowstone Mine and Coon & Johnson Mine in the eastern hills. The map captures the remote character of the Salmon Trinity Alps Primitive Area and the high ridges of South Fork Mountain before significant modern development, preserving the locations of regional landmarks like Hayfork Bally and the Ewing Reservoir.
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This is the sole edition of this map. No revisions or reprints were ever made.
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