Cawthra Mulock Nature Reserve
Nature Reserves

Blue Racer Snake; CREDIT: Joe Crowley
Since 1961, Ontario Nature has been protecting significant natural areas within its nature reserve system. With 24 properties totalling 2,600 hectares (6,423 acres), the system preserves some of the province's best remaining examples of imperiled and vulnerable habitats.
Many rare and endangered species are protected by Ontario Nature's nature reserve system including the blue racer snake, the ramshead lady-slipper and the red-headed woodpecker.
The Ontario Nature reserves are open to visitors - all that is required is that you stay marked trails to help preserve fragile habitats. For more information about visiting the reserves, please read our Permitted Activities Policy (PDF: 46k) or contact the Ontario Nature office.
Information on specific nature reserves can be found in Related Links in the left sidebar of this page. You can also link to the nature reserve pages by clicking on the interactive map below.
For more information on Nature Reserves, click on the following links:
Protect
- Protect Wild Species and Wild Spaces
- Habitat
- Species
- Reptiles at Risk
- Ontario's Reptile and Amphibian Atlas
- Reptiles and Amphibians of Ontario
- Policies and Procedures
- Survey Guidelines
- Tips for Finding Ontario's Reptiles and Amphibians
- Atlas FAQs
- Threats to Reptiles and Amphibians in Ontario
- Legal Protection for Ontario's Reptiles and Amphibians
- Reptile and Amphibian Stewardship
- Non-native Species
- Backyard Frog Survey
- Atlas App
- Ontario Breeding Bird Atlas
- Campaigns



