Ex Coelis Mountain
mountain in Alberta, Canada

Ex Coelis Mountain is a 2,545-metre (8,350-foot) mountain with five peaks located in the North Saskatchewan River valley of the Canadian Rockies of Alberta, Canada. It is situated south of Abraham Lake and just outside the eastern boundary of Banff National Park. Its nearest higher peak is Hatter Peak, 8.0 km (5.0 mi) to the southeast. Ex Coelis Mountain can be seen from the David Thompson Highway east of Saskatchewan Crossing. Ex Coelis Mountain is composed of sedimentary rock laid down from the Precambrian to Jurassic periods that was pushed east and over the top of younger rock during the Laramide orogeny.
History
In 1911, this geographic feature was originally known as Kadoona Mountain by Mary Schäffer, which is a corruption of the Stoney name Kedonnaha Tinda (Meadow of the Winds), today known as the Kootenay Plains.
The mountain's name was officially adopted in 1994 by the Geographical Names Board of Canada to honour the 1st Canadian Parachute Battalion. In Latin, Ex Coelis means Out of the Clouds, which is their motto.
In 1997, the five peaks of Ex Coelis Mountain were assigned individual names. Normandy Peak, Ardennes Peak, and Rhine Peak were named for World War II battles in which the battalion participated.
“Ex Coelis Mountain” enters the record as mountain in Alberta, Canada. Crown Archives preserves that source wording while asking what Coelis, Mountain and mountain can confirm, complicate or overturn.
Why this record matters
“Ex Coelis Mountain” is worth following because a concise public description often conceals a longer documentary argument. Here, Coelis, Mountain and mountain provides the most credible route into that argument.
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 Aug 31, 2026. The linked authority identifier is Q22448432. Authority coordinates are 52.032, -116.341. 2 of 2 selected statements include explicit references; 1 carry qualifiers and 1 use preferred rank. The first chronological checks are 1911, 1994 and 1997.
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.
- 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 “Ex Coelis Mountain”, its source revision and the description used here.
- Expand the search: follow Ex Coelis Mountain primary sources, Ex Coelis Mountain archive and Coelis 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 “Ex Coelis Mountain”?
- Which authority defined the place, boundary or structure at the relevant date?
- Which earlier names or jurisdictions may reveal additional records?
Search terms from this dossier
This entry incorporates text from “Ex Coelis Mountain” 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.