Black Bear, now in Siskiyou County was a gold mining camp, in the now defunct Klamath County, that had a post office from 1869. From 1874 it was within that part of Klamath County annexed to Siskiyou County. Its post office was closed and moved to Sawyers Bar in 1941.
- U.S. Geological Survey Geographic Names Information System: Black Bear
- Frickstad, Walter N., A Century of California Post Offices 1848-1954, Philatelic Research Society, Oakland, CA. 1955, Pages 60-69.
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