The 627 ha nature reserve located in the headwaters of Otter Creek of the Salmon River system, protects one of the largest examples of open and treed fen in southeastern Ontario. Fens, which are rare in southern Ontario, are botanically rich wetlands found mostly in large shallow depressions in the landscape. In the middle of the reserve is Mud Lake, a shallow water body, surrounded by 19 different natural habitats. The nature reserve protects significant wildlife species, including the Olive Hairstreak Butterfly and Cooperís Hawk. Protection of the natural area was made possible through a generous donation from Bill Menzel through the Ontario Parks Legacy 2000 program, a partnership between Ontario Parks and The Nature Conservancy of Canada. Additional funding and support was provided by Environment Canada, through the Eastern Habitat Joint Venture program, and the Ontario Heritage Foundation.
Park Facilities and Activities: There are no visitor facilities. Appropriate recreational activities include birdwatching, wildlife viewing, nature photography and hiking.
Location: About 17km northwest of Napanee.