Wikipedia doesn’t have a history of Beaver Marsh yet. The photos, dates and memories neighbors add here are how it gets written.
Beaver Marsh is an unincorporated community in Klamath County, Oregon, United States. It is located on U.S. Route 97, about 6 miles south of Chemult. The Southern Pacific Cascade Line passes near the locale. As of the 2020 census, Beaver Marsh had a population of 52. Beaver Marsh was an important stagecoach stop on the Oregon Central Military Wagon Road. Beaver Marsh post office opened in 1927 and closed in 1928. The community is near the swamp of the same name.
Its first post office opened in 1927.
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Beaver Marsh, 1927 to 1935
Woven from the archive, old maps, post office records, the National Register and the people born here.
Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021). How TownRatings grades history →
From U.S. Geological Survey historical maps, the US Post Offices dataset (Blevins & Helbock) and the USGS Geographic Names Information System. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.