U.S. Route 89 in Idaho
section of U.S. Numbered Highway in Bear Lake County, Idaho, United States
U.S. Route 89 (US 89) is a part of the U.S. Highway System that travels Flagstaff, Arizona, north to the Canadian border; broken into two segments by Yellowstone National Park where unnumbered park roads serve as a connector. In the state of Idaho, it extends approximately 44 miles (71 km) from the Utah state line near Glencoe to the Wyoming state line near Geneva.
Route description
US 89 enters Bear Lake County from Utah along the western shore of Bear Lake, passing through Glencoe, Fish Haven, and St. Charles. North of the lake, it continues through Bloomington, Paris (the county seat for Bear Lake County), and Ovid before reaching Montpelier, the largest community along the route. US 89 shares a short concurrency with US 30 in Montpelier before it continues eastward over the Preuss Range, a subrange of the Peale Mountains. It crosses the Geneva Summit and passes through Geneva before crossing into Wyoming.
Major intersections
The entire route is in Bear Lake County.
Begin with the source’s own compact description: “U.S. Route 89 in Idaho” is section of U.S. Numbered Highway in Bear Lake County, Idaho, United States. The dossier treats that line as a proposition to test through Route, Idaho and section, not as a finished interpretation.
Why this record matters
The phrase “section of U.S. Numbered Highway in Bear Lake County, Idaho, United States” 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 strongest evidence will usually combine a dated visual record with documents produced by the authority responsible for the place. The source revision retrieved here is dated Apr 25, 2026. The linked authority identifier is Q11704853. Authority coordinates are 42.001, -111.409. 1 of 3 selected statements include explicit references; 2 carry qualifiers and 0 use preferred rank.
Modern boundaries and familiar names can conceal earlier jurisdictions or structures that do not align with the present site. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. 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 “U.S. Route 89 in Idaho”, its source revision and the description used here.
- Expand the search: follow U.S. Route 89 in Idaho primary sources, U.S. Route 89 in Idaho archive and Route 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 “U.S. Route 89 in Idaho”?
- Which authority defined the place, boundary or structure at the relevant date?
- What physical evidence or contemporary plan supports the description?
Search terms from this dossier
This entry incorporates text from “U.S. Route 89 in Idaho” 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.