Thirty Thousand Islands
freshwater archipelago, along the east side of Georgian Bay, part of the Great Lakes, in Ontario, Canada
The Thirty Thousand Islands are the world's largest freshwater archipelago, and are located mainly along the east side of Georgian Bay, part of the Great Lakes, in Ontario, Canada.
UNESCO designated the area in 2004 as the Georgian Bay Littoral (also called the Georgian Bay Biosphere Reserve). It is an area of 347,000 hectares (860,000 acres) that stretches 200 kilometres (120 mi) along the eastern coast from Port Severn to the French River.
Though the Thirty Thousand Islands has no formal geographical boundaries, its general location runs from Beausoleil Island in the south to the French River Provincial Park in the north. Just a few kilometres west of Beausoleil Island are four more islands – Giants Tomb Island, Hope Island, Beckwith Island, and Christian Island. To the west of French River Provincial Park are many more islands, including Manitoulin Island, the largest freshwater lake island in the world.
Group of Seven
Many of the Group of Seven landscape paintings feature the Georgian Bay Shoreline and the adjacent windswept islands with their distinctive trees and large boulders, which are characteristic features of the Canadian Shield. Franklin Carmichael, A.Y. Jackson, Arthur Lismer, Frederick Varley, A.J. Casson and Tom Thomson all painted extensively along Georgian Bay. At that time, they came by train as the road to Killarney, Ontario would not be built until four decades later.
The public source identifies “Thirty Thousand Islands” as freshwater archipelago, along the east side of Georgian Bay, part of the Great Lakes, in Ontario, Canada. This brief keeps that definition visible, then builds a research path around Thirty, Thousand and Islands.
Why this record matters
A short description can identify a subject without explaining its stakes. For “Thirty Thousand Islands”, the useful work is to connect “freshwater archipelago, along the east side of Georgian Bay, part of the Great Lakes, in Ontario, Canada” to the records capable of establishing context and consequence.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Jun 29, 2026. The linked authority identifier is Q22495712. Authority coordinates are 45.373, -80.418. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2004.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. 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
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Thirty Thousand Islands”, its source revision and the description used here.
- Expand the search: follow Thirty Thousand Islands primary sources, Thirty Thousand Islands archive and Thirty 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 “Thirty Thousand Islands”?
- Which institution is responsible for the underlying evidence?
- What terminology or title could unlock a more precise catalogue search?
Search terms from this dossier
This entry incorporates text from “Thirty Thousand Islands” 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.