This link was posted on the CanoeCountry forum and perked my interest.  No detail is given though as to regulations or mention of the "green" zone.  

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"We would drive into the heart of Canadian Shield muskie country, framed by Eagle Lake, Lake of the Woods and Rainy River. Instead of spending more than $1,000 on a guide, lodging, home-cooked meals and possibly float-plane fees, we'd just haul a canoe into Canada's lightly regulated and largely pristine "Crown lands" and camp along the shore, a la the Boundary Waters Canoe Area Wilderness or its Canadian twin, Quetico Provincial Park. "