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The Devil Canyon-Bear Canyon Primitive Area, located about 10 mi northeast of Pasadena in the Angeles National Forest, Los Angeles County, California, is an area about 8 mi long by 6 mi wide. To evaluate the mineral-resource potential of the area, geologic examinations were made by foot traverses. Samples of fresh, altered, and mineralized rocks, of sand, gravel, and other sediments, and of some panned concentrates from stream sediments were collected and analyzed. The mineral-resource survey concluded that there is little promise for the occurrence of metallic resources.