La Grosse Île, or Île de Quarantaine, 2.9 km long by 1 km wide, is located 46 km downstream from Québec City in the ST LAWRENCE RIVER estuary. The island is a wooded Appalachian ridge sculpted by coves and capes. In 1646 the Île de Grâce was ceded to Governor Charles Huault de MONTMAGNY.
Arctic sovereignty is a key part of Canada’s history and future — 40 per cent of the country’s landmass is in its three northern territories, and the country has 162,000 kilometers km of Arctic coastline. Sovereignty over the area has become a national priority for Canadian governments in the 21st century, thanks to growing international interest in the Arctic due to resource development, climate change, control of the Northwest Passage and access to transportation routes. Said Prime Minister Stephen Harper in 2008: “The geopolitical importance of the Arctic and Canada’s interests in it have never been greater.”1
This is a steep or vertical cliff which usually extends over a considerable distance. The most common type of escarpment occurs where more resistant strata form a cap rock over easily eroded rocks. As EROSION takes place, the lower rock erodes more rapidly so that the cliff remains very steep.
The falls have eroded the soft shales and limestones of the escarpment at an average rate of 1.2 m per year and now stand 11 km from their place of origin at present-day QUEENSTON. Their recession rate has been variable though, as the volume of water flowing from the upper Great Lakes controls it.
The Rocky Mountain Trench is a long and deep valley extending approximately 1,500 km from the Bitterroot Valley in northwest Montana through British Columbia to the Liard Plain just south of the Yukon Territory. Its predominantly flat floor is 3–20 km wide and ranges in elevation between 600 m and 1,000 m above sea level. With walls made of sedimentary, volcanic and igneous rock, the Trench is sometimes referred to as the “Valley of a Thousand Peaks” because of the towering mountain ranges on either side: the Rocky Mountains to the east and the Columbia, Omineca and Cassiar mountains to the west. Humans have relied on the rich resources provided by this distinctive landscape from pre-colonial times to the present.
Qausuittuq National Park encompasses 11,000 km2 on northern Bathurst Island and smaller surrounding islands in Nunavut. It also includes the waters of May Inlet and Young Inlet. Pronounced Kow-soo-ee-took, the name of this park translates to “the place where the sun doesn’t rise” in Inuktitut. It is bordered to the south by Polar Bear Pass National Wildlife Area, and together these two zones protect a large, ecologically intact area in the Canadian Arctic Archipelago. Qausuittuq was established on 1 September 2015 as Canada’s 45th national park. It represents the Western High Arctic Natural Region, the 38th natural region of the 39 that constitute Canada’s national parks system.
Rivière Saint-Maurice, 563 km long, rises upstream from Réservoir Gouin, 200 km west of Lac Saint-Jean, Québec. It drains a basin of 43 300 km2. After its confluence with Rivière Manouane, it feeds Réservoir Blanc and then takes in the Vermillon, Trenche, Croche, Mattawin and Mékinac rivers.