Ottawa River drainage basin
The Ottawa River drainage basin is the drainage basin in northern North America where surface water empties into the Ottawa River and adjoining waters. Spanning an area of about , it is the 12th largest drainage basin in Canada, occupying the Canadian provinces of Ontario and Quebec. It accounts for about 11% of the total Saint Lawrence River drainage area.
Indian Lake Chain, Ontario
The Indian Lake Chain is a tourism designation given to a series of interconnected lakes located northwest of the community of Vermilion Bay in Kenora District, Ontario, Canada. The designation takes its name from Indian Lake that is part of the series. According to maps published by resorts located on the lakes, the Indian Lake Chain consists of ten lakes: Little Boulder Lake, Boulder Lake, Cobble Lake, Bladder Lake, Big Moose Lake, Little Moose Lake, Whitney Lake, Edward Lake, Indian Lake and Forrest Lake. However, the Atlas of Canada shows only seven lakes, as Little Boulder, Boulder, Cobble and Bladder Lakes are all simply designated "Cobble Lake". The surface elevation of the lakes is approximately , and the water level is maintained by the Forest Lake Dam. (Forest Lake is spelled with two "R"s on local maps but only one at the Atlas of Canada).