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Manitoba’s colour-changing lake becomes park reserve

Little Limestone Lake protected from industrial development 

After years of promoting conservation within the Interlake region, the Canadian Parks and Wilderness Society (CPAWS) welcomes the Province of Manitoba's granting of park reserve status for Little Limestone Lake and surrounding lands. This designation means the area is now protected from industrial activities while the province consults local First Nations and considers input from all citizens about the future of what CPAWS deems as "Manitoba's most amazing lake."

"CPAWS has been promoting protection of Little Limestone Lake and the Boreal forest around it for over a decade. We're pleased the Manitoba government now recognizes the significance of this irreplaceable wonder," said Ron Thiessen, Executive Director of CPAWS Manitoba. "We'd also like to highly commend Mosakahikan First Nation for their efforts to protect their traditional lands and waters."

Communities and Conservation

CPAWS is looking forward to continuing to work with all involved to ensure that a sufficient area around the lake is protected, so the lake's ecology remains healthy and local communities' cultural and economic needs are met.  

" We expect the province to work with local First Nations and all Manitobans to make certain the protected area is large enough to maintain the lake's health as well as traditional activities and sustainable tourism opportunities for the area's residents," added Thiessen.

A Step Toward a Sustainable Future for the Interlake Region

CPAWS is optimistic the Park Reserve process for Little Limestone will be a stepping stone to other conservation initiatives within the Interlake region.

"We look forward to continuing to work with governments and local Interlake communities to create a large protected areas' network that will protect Mother Nature and provide jobs for people in the region. This will only happen with rightful consultation and consent from First Nations, added Thiessen.

Little Limestone Lake - Why it's Special

Little Limestone Lake, located near the northwest tip of Lake Winnipeg, is considered by scientists to be Earth's pre-eminent marl lake. Marl is created when calcite, the chief constituent of limestone, is chemically precipitated from warm water. As the temperature rises, the quantity of marl increases, which changes the colour of the lake.  

"It's common for the lake to transform from a brilliant turquoise in the morning, to a robin's egg blue by mid-afternoon," exclaimed Thiessen. The lake and surrounding area are home to the only place in North America where moose, elk, whitetail deer and woodland caribou share habitat, along with some of Canada's greatest concentrations of inland colonial nesting birds.


Ron Thiessen, CPAWS MB Executive Director  (204)794 4971.
Please visit to view a map of Little Limestone Lake

CPAWS is Canada's pre-eminent, non-profit wilderness protection organization.
With a network of 13 chapters, 20,000 members, over 50 staff and hundreds of committed volunteers, since 1963 CPAWS has helped to conserve over 400,000 square kilometers of Canada's most treasured wild places in parks and other protected areas- an area nearly seven times the size of Nova Scotia!