Olson Mountain (Jackson County, Oregon)
extinct shield volcano in Oregon

Olson Mountain, located in Jackson County, Oregon in the US is an extinct shield volcano. It created the Table Rocks north of Medford, Oregon.
Geography
Olson Mountain is south of Prospect, Oregon, northeast of Medford, Oregon, northwest of other shield volcanoes such as Mount McLoughlin, Brown Mountain, Pelican Butte, and Rustler Peak, and east of Lost Creek Lake.
Geology
Upper and Lower Table Rock, two plateaus north of Medford, are lava flows that were created when Olson Mountain erupted. They were eroded when the Rogue River carved into the rock, causing the lava to collapse.
Begin with the source’s own compact description: “Olson Mountain (Jackson County, Oregon)” is extinct shield volcano in Oregon. The dossier treats that line as a proposition to test through Olson, Mountain and Jackson, not as a finished interpretation.
Why this record matters
The phrase “extinct shield volcano in Oregon” 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.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Apr 23, 2025. The linked authority identifier is Q130223688. Authority coordinates are 42.662, -122.536. None of the 1 selected statements returned an explicit reference.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. 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
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Olson Mountain (Jackson County, Oregon)”, its source revision and the description used here.
- Expand the search: follow Olson Mountain (Jackson County, Oregon) primary sources, Olson Mountain (Jackson County, Oregon) archive and Olson 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 “Olson Mountain (Jackson County, Oregon)”?
- What terminology or title could unlock a more precise catalogue search?
- Which cited source is closest to the event, object or claim?
Search terms from this dossier
This entry incorporates text from “Olson Mountain (Jackson County, Oregon)” 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.