Lake Winnipeg Coastal Marsh (Photo by NCC)

Lake Winnipeg Coastal Marsh (Photo by NCC)

Interlake Natural Area

Tall-grass Prairie, Interlake (Photo by NCC)

Tall-grass Prairie, Interlake (Photo by NCC)

The Interlake Natural Area’s 1,309,260 hectare (3,235,253 acre) mosaic of woodlands, expansive wetlands, unique karst features, lakeshores, and native prairie supports an incredible variety of wildlife. The size and relative intactness of the Interlake, its unique and varying landforms, and its situation straddling the transition between the prairies and the northern boreal forest combine to produce a complement of species that are rarely observed in such close proximity. Endangered tall-grass prairie occurs here, as do karst features supporting globally uncommon alvar habitat, internationally-significant wetlands, and spectacularly beautiful beaches.

Nestled between Lakes Winnipeg and Manitoba, the health of the Interlake’s habitats, especially its sprawling wetlands and riparian areas, contribute to the health of these lakes. Five Important Bird Areas occur in the NA, including the internationally significant Delta and Netley-Libau Coastal Marshes. Unique karst features are found in association with limestone geological formations, including overwintering dens that support the world’s greatest concentrations of snakes, and inland cliff habitat that supports Endangered Gastony's cliffbrake.

The Interlake encompasses the northernmost extent of tall-grass prairie in North America and one of only two landscape-scale tall-grass prairie remnants remaining in Manitoba (the other being the Nature Conservancy of Canada’s Tall Grass Prairie Natural Area situated along the U.S. border). These prairies support several species at risk including Dakota skipper, small white lady’s-slipper, and false foxgloves.

For more information about the Interlake and the conservation work NCC is undertaking in the region, see NCC’s Interlake Natural Area Conservation Plan.

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