Rouge National Urban Park
national urban park in Ontario

Rouge National Urban Park is a national urban park in Ontario, Canada. The park is centred around the Rouge River and its tributaries in the Greater Toronto Area. The southern portion of the park is situated around the mouth of the river in Toronto, and extends northwards into Markham, Pickering, Uxbridge, and Whitchurch-Stouffville.
Since 2011, Parks Canada has been working to nationalize and nearly double the size of the original Rouge Park. Parks Canada is planning to add more trails, education and orientation centres and improved signage and interpretive panels and displays throughout the park. Parks Canada introduced new educational programs to the park, including Learn-to-Camp, Learn-to-Hike, fire side chats, and other complimentary programming. The park now spans 79.1 square kilometres (30.5 mi2) or approximately 19,500 acres. Parks Canada managed 95% of the area as of June 15, 2019, with the rest expected to be transferred in the future, of which 46 square kilometres (18 mi2) had been formally designated under the Rouge Urban National Park Act.
History
Natural history
Water from glaciers melting 12,000 years ago formed ancestral Lake Ontario, which covered this entire area. A large ice lobe, roughly 20 metres thick, blocked the lake from draining eastward, leaving water levels high as the lake slowly drained south to what is now the Mississippi River.
This brief starts where responsible research should: with the source description of “Rouge National Urban Park” as national urban park in Ontario. 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 national urban park in Ontario. Its deeper value depends on whether names, dates, institutions and citations support that framing.
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 6, 2026. The linked authority identifier is Q26810464. Authority coordinates are 43.808, -79.150. 1 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2011 and 2019.
Modern boundaries and familiar names can conceal earlier jurisdictions or structures that do not align with the present site. 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 “Rouge National Urban Park”, its source revision and the description used here.
- Expand the search: follow Rouge National Urban Park primary sources, Rouge National Urban Park archive and Rouge 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 “Rouge National Urban Park”?
- Which earlier names or jurisdictions may reveal additional records?
- Which authority defined the place, boundary or structure at the relevant date?
Search terms from this dossier
This entry incorporates text from “Rouge National Urban Park” 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.