Oregon Route 422
state highway in Klamath County, Oregon, United States

Oregon Route 422 (OR 422) is an Oregon state highway running from Modoc Point Road near Klamath Agency to US 97 near Chiloquin. OR 422 is known as the Chiloquin Highway No. 422 (see Oregon highways and routes). It is 5 miles (8.0 km) long and runs east–west, entirely within Klamath County.
OR 422 was established in 2002 as part of Oregon's project to assign route numbers to highways that previously were not assigned. The route is mentioned on signage along U.S. 97, but no signage exists on OR 422 itself or at its junction with OR 62 as of July 2017.
OR 422 has an unsigned spur in Chiloquin, which runs 0.19 miles (0.31 km).
Route description
OR 422 begins at an intersection with Modoc Point Road approximately one mile south of Klamath Agency and heads east, crossing OR 62 0.16 miles (0.26 km) east of the start of the route. OR 422 then continues east, crossing US 97 approximately 1-mile (1.6 km) west of Chiloquin and turning southeast into Chiloquin. At the intersection of Chocktoot Street and Chiloquin Road in Chiloquin, OR 422S heads southeast along Chocktoot Street and OR 422 turns southwest along Chiloquin Road, ending at an intersection with US 97 approximately 0.60 miles (0.97 km) beyond the city limits.
This brief starts where responsible research should: with the source description of “Oregon Route 422” as state highway in Klamath County, Oregon, United States. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the places & architecture register because the source frames it as state highway in Klamath County, Oregon, United States. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Maps, plans, fabric surveys and administrative records can establish how the site’s name, extent and function changed over time. The source revision retrieved here is dated May 9, 2025. The linked authority identifier is Q2494232. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2002 and 2017.
A single description cannot reconcile every naming convention, rebuilding phase or administrative transfer associated with a place. 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 “Oregon Route 422”, its source revision and the description used here.
- Expand the search: follow Oregon Route 422 primary sources, Oregon Route 422 archive and Oregon 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 “Oregon Route 422”?
- 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 “Oregon Route 422” 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.