I found this on Wikipedia.
I don't know how accurate it is or if the 2015 date is still relevant.


Quote:

The park has been completely protected from logging since 1971. Motor vehicles, including boats, were banned in the Quetico in 1979, with the exception of the Lac La Croix Guides Association, part of the Lac La Croix First Nation, which is allowed to operate power boats with engines no more than 10 horsepower (7.5 kW) on Quetico, Beaverhouse, Wolseley, Tanner, Minn, and McAree Lakes. The official plan (Agreement of Coexistence) is to phase out motorized guiding activities by the Lac La Croix First Nation in Quetico Provincial Park through simple attrition by the year 2015.