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Two Step Cliffs

topographic feature on Alexander Island, Antarctica

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 revisionJul 26, 2022
Entity authorityQ7224472
Source-derived summary

Two Step Cliffs (71°54′S 68°13′W) is the eastern face of a flat-topped sedimentary mountain, rising to about 680 m, immediately east of Mars Glacier on the east coast of Alexander Island, Antarctica. At the bottom of the cliffs is the Two Step Moraine. First seen from the air by Lincoln Ellsworth on November 23, 1935, and mapped from photos obtained on that flight by W.L.G. Joerg. Roughly surveyed from the ground in 1936 by the British Graham Land Expedition and in 1940-41 by the United States Antarctic Service, who used the names "Two Step Mountains" and "Table Mountain" for this feature. The name Two Step Cliffs derives from the name used by USAS, and was suggested by Falkland Islands Dependencies Survey following surveys in 1949 as being particularly descriptive of this feature.

This article incorporates public domain material from "Two Step Cliffs". Geographic Names Information System. United States Geological Survey.

Editorial summary

This brief starts where responsible research should: with the source description of “Two Step Cliffs” as topographic feature on Alexander Island, Antarctica. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewA strong orientation record where physical form, institutional use and historical geography need to be read together. The current lead gives the account dated anchors—1935, 1936, 1940, 1949—that can be checked directly. The selected authority fields contribute no independent date. The account is most persuasive where Step, Cliffs and topographic can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the places & architecture register because the source frames it as topographic feature on Alexander Island, Antarctica. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

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 Jul 26, 2022. The linked authority identifier is Q7224472. Authority coordinates are -71.900, -68.217. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1935, 1936, 1940 and 1949.

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 “Two Step Cliffs”, its source revision and the description used here.
  2. Expand the search: follow Two Step Cliffs primary sources, Two Step Cliffs archive and Step 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 “Two Step Cliffs”?
  2. What physical evidence or contemporary plan supports the description?
  3. Which authority defined the place, boundary or structure at the relevant date?
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Source & attribution

This entry incorporates text from Two Step Cliffs” 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.