Bookmark this page
Provincial Links

Oak Ridges Moraine

One of the most defining natural features in Durham Region and southern Ontario is the Oak Ridges Moraine. Formed during the last great ice age, nearly 15,000 years ago, the Moraine is approximately 160 km in length and extends from the Niagara Escarpment in the west to Rice Lake in the east. It is comprised of a unique combination of geological, hydrogeological, topographical and biotic attributes that make it a significant and sensitive landform. Additional information on the geological and natural features of the Moraine is available on the link below.

Building on years of effort to protect the Moraine, the Province released the Oak Ridges Moraine Conservation Plan on April 22, 2002. The Conservation Plan sets out the province’s land use and resource management planning direction for protecting the Moraine’s ecological and hydrological integrity.

On April 16, 2003, the Region adopted an amendment that integrates the Conservation Plan into the Regional Official Plan. This amendment was approved by the Minister of Municipal Affairs and Housing on Oct. 21, 2004. More information on the Conservation Plan and the Regional Official Plan Amendment can be found by following the link below.