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Research dossier · Places & Architecture

Montana meridian

geographic measurement from limestone hill in Montana

Architectural plans, a scale model, maps and brass measuring instruments
Places and architectureInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionFeb 1, 2025
Entity authorityQ6904365 ↗
Source-derived summary

The Montana meridian extends north and south from the initial monument on the summit of a limestone hill, 800 feet (240 meters) high, longitude 111° 39′ 33″ west from Greenwich, and, with the base line on the parallel of 45° 47′ 13″ north latitude, governs the surveys in the state of Montana. The initial point lies near Willow Creek, Montana.

See also

List of principal and guide meridians and base lines of the United States

References

Sources

Raymond, William Galt (1914). Plane Surveying for Use in the Classroom and Field (via Google Books). New York: American Book Company.

External links

"Montana". U.S. Bureau of Land Management (BLM). Archived from the original on 2015-03-15. Retrieved 2012-09-25.

"Montana Principal Meridian".

Editorial summary

“Montana meridian” enters the record as geographic measurement from limestone hill in Montana. Crown Archives preserves that source wording while asking what Montana, meridian and geographic can confirm, complicate or overturn.

Editorial reviewA valuable geographic starting point for tracing changing names, boundaries, uses and administrative responsibility. The current lead gives the account dated anchors—1914, 2015, 2012—that can be checked directly. The selected authority fields contribute no independent date. Its strongest next move is a source search built around Montana, meridian and geographic.
Editorial analysis

Why this record matters

“Montana meridian” is worth following because a concise public description often conceals a longer documentary argument. Here, Montana, meridian and geographic provides the most credible route into that argument.

Evidence profile

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 Feb 1, 2025. The linked authority identifier is Q6904365. Authority coordinates are 45.787, -111.660. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1914, 2015 and 2012.

Critical limits

Architectural summaries often privilege surviving fabric and can understate demolished phases, contested use or displaced communities. 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.

Best used for
  • Historic place names
  • Jurisdictional context
  • Routes into maps and plans
Verify next

Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.

Three-step research path

  1. Establish the record: confirm the title “Montana meridian”, its source revision and the description used here.
  2. Expand the search: follow Montana meridian primary sources, Montana meridian archive and Montana research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Montana meridian”?
  2. What physical evidence or contemporary plan supports the description?
  3. Which earlier names or jurisdictions may reveal additional records?
Subject index

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Source & attribution

This entry incorporates text from “Montana meridian” 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.