Round Mountain, California
census-designated place in Shasta County, California

Round Mountain is a census-designated place in Shasta County, California, United States. Its population is 160 as of the 2020 census, up from 155 from the 2010 census.
Geography
Round Mountain is located at 40°47′59″N 121°56′35″W (40.799633, -121.943058).
According to the United States Census Bureau, the CDP has a total area of 1.7 square miles (4.4 km2), of which 99.60% is land and 0.40% is water.
Round Mountain is the geographic center of the Achomawi and Atsugewi or "Pit River" first nation. The "Pit River" tribe has never signed a treaty with the federal government and remains a strong force of opposition to federal control.
Round Mountain is the home of Hill Country Health and Wellness Center, one of the most solvent clinics in California. It also has the highest awarded LEEDS construction certificates of any clinic in California. Hill Country maintains a large youth facility.
Some organic farmers in Round Mountain are members of the Shasta Regional Seed Cooperative and work together to maintain hundreds of heirloom food crops as well as bio-dynamic farming techniques.
Begin with the source’s own compact description: “Round Mountain, California” is census-designated place in Shasta County, California. The dossier treats that line as a proposition to test through Round, Mountain and California, not as a finished interpretation.
Why this record matters
The phrase “census-designated place in Shasta County, California” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Place names and jurisdictional language are key evidence: both can reveal earlier catalogue descriptions and overlooked record series. The source revision retrieved here is dated Sep 14, 2026. The linked authority identifier is Q3303238. Authority coordinates are 40.800, -121.943. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2020 and 2010.
A single description cannot reconcile every naming convention, rebuilding phase or administrative transfer associated with a place. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “Round Mountain, California”, its source revision and the description used here.
- Expand the search: follow Round Mountain, California primary sources, Round Mountain, California archive and Round research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Round Mountain, California”?
- What physical evidence or contemporary plan supports the description?
- Which authority defined the place, boundary or structure at the relevant date?
Search terms from this dossier
This entry incorporates text from “Round Mountain, California” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.