James Ross Island
island off the Antarctic Peninsula

James Ross Island is a large island off the southeast side and near the northeastern extremity of the Antarctic Peninsula, from which it is separated by Prince Gustav Channel.
Rising to 1,630 metres (5,350 ft), it is irregularly shaped and extends 40 nautical miles (74 km; 46 mi) in a north–south direction.
Location
James Ross Island is separated from Trinity Peninsula, at the tip of the Antarctic Peninsula to the northwest, by the Prince Gustav Channel.
Vega Island is to the north of the island, separated from James Ross Island by the Herbert Sound.
Erebus and Terror Gulf is to the northeast.
Seymour Island and Snow Hill Island are to the southeast.
It is in the James Ross Island group.
The island was connected to the Antarctic mainland by an ice shelf until 1995, when the ice shelf collapsed, making the Prince Gustav Channel passable for the first time.
Mendel Polar Station, the first Czech Antarctic Base, is located on the island.
Exploration and name
James Ross Island was charted in October 1903 by the Swedish Antarctic Expedition (SwedAE) under Otto Nordenskiöld, who named it for Sir James Clark Ross, the leader of a British expedition to this area in 1842 that discovered and roughly charted a number of points along the eastern side of the island.
Begin with the source’s own compact description: “James Ross Island” is island off the Antarctic Peninsula. The dossier treats that line as a proposition to test through James, Ross and Island, not as a finished interpretation.
Why this record matters
The phrase “island off the Antarctic Peninsula” 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.
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 Jul 14, 2026. The linked authority identifier is Q1022143. VIAF identifies the subject as 236112237. The Library of Congress control number is sh92005876. Authority coordinates are -64.167, -57.750. 3 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1995, 1903 and 1842.
A single description cannot reconcile every naming convention, rebuilding phase or administrative transfer associated with a place. 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.
- 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 “James Ross Island”, its source revision and the description used here.
- Expand the search: follow James Ross Island primary sources, James Ross Island archive and James 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 “James Ross Island”?
- 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 “James Ross Island” 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.