The areas of Ontario generally surrounded by the three great lakes: Ontario, Erie, and Huron. The largest population centre is Toronto, and the megapolis that extends around the north-western to western shores of Lake Ontario.
Much of the climbing in the area is on the limestone of the Niagara escarpment.
In the more populated areas of Ontario, especially southern and south-western Ontario (within a few hours drive of Toronto) access is often complicated, with many cliffs closed to climbing. The Ontario Alliance of Climbers (OAC) monitors this, and negotiates for access to cliffs, or to avoid closures. They maintain a crag status list at: https://www.ontarioallianceofclimbers.ca/crag-status/
The Ontario Ministry of Natural Resources and Forestry also maintains an online crown land use policy atlas. This can often be used to determine the ownership status of the land on which a cliff is located in Ontario. It can be found at: http://www.giscoeapp.lrc.gov.on.ca/web/MNR/NHLUPS/CLUPA/Viewer/Viewer.html .
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theCrag.com is a free guide for rock climbing areas all over the world, collaboratively edited by keen rock climbers, boulderers and other nice folks.You can log all your routes, connect and chat with other climbers and much more...» go exploring, » learn more or » ask us a questionAaron Murray on ★★ Man Overboard 5.11c - Man Overboard
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