Cassiar Country

Source: Wikipedia. Pages: 25. Chapters: Ash Mountain (British Columbia), Atsutla Range, Blue River Indian Reserve No. 1, Boya Lake Provincial Park, British Columbia Highway 37, British Columbia Highway 37A, Caribou Tuya, Cassiar, British Columbia, Cassiar (electoral district), Chechidla Range, Cheja Range, Cottonwood River (Dease River), Dark Mountain, Dease Creek, Dease Lake, British Columbia, Dease Lake (British Columbia), Dease Lake Airport, Dease River First Nation, Defot, Gabrielse Cone, Good Hope Lake, British Columbia, Grizzly Butte, Hackett River, Hayes River (British Columbia), Heart Peaks, Jade City, British Columbia, Jennings River, Kaska Tribal Council, Kawdy Mountain, Kawdy Plateau, Laketon, British Columbia, Level Mountain Range, Maitland Volcano, Mathews Tuya, McDame, British Columbia, McDames Creek Indian Reserve No. 2, Meehaz Mountain, Meszah Peak, Nahlin Mountain, Nahlin River, Nellie Cashman, Porter Landing, Sharktooth Mountain, Sheslay, British Columbia, Sheslay River, Simpson Peak (Canada), South Tuya, Stikine Plateau, Swift River (Teslin Lake), Taku River, Teslin River, Thudaka Range, Toozaza Peak, Tutsingale Mountain, Tuya Mountains Provincial Park, Tuya Range, Volcano Vent, West Vent. Excerpt: Heart Peaks, originally known as the Heart Mountains, is a mountain massif in the Northern Interior of British Columbia, Canada. It is located northwest of the small community of Telegraph Creek and just southwest of Callison Ranch. With a maximum elevation of , it rises above the surrounding landscape on the Nahlin Plateau, which is part of the western Stikine Plateau. Heart Peaks has been an area of prospecting since the 1980s with the discovery of precious metals. Situated in a large area of volcanic activity, Heart Peaks consists of a large shield volcano. It was formed in the past 23 million years by repeated eruptions of lava and rock. However, present day eruptions have not been observed. A number of related volcanoes are adjacent to Heart Peaks and form an extensive volcanic zone over long. The knowledge of Heart Peaks is limited, especially its eruptive history. Heart Peaks is part of the Northern Cordilleran Volcanic Province, a long volcanic chain extending from just north of the city of Prince Rupert in British Columbia through Yukon to the Alaska border. Along this line, the North American Plate has been rupturing. Earth's lithosphere consists of several large tectonic plates, which slowly move towards and away from one another, either converging and subducting or diverging and rifting; volcanoes and earthquakes are generated by these activities. The west coast of North America is the site of plate margins between the large Pacific and North American plates, and also between the smaller Juan de Fuca and Cocos plates. Tectonic activity along the North Coast of British Columbia and Southeast Alaska is characterized by transform movements of the Queen Charlotte Fault, a plate boundary where the Pacific Plate skids by the North American Plate. As the Pacific Plate moves northward to the Aleutian subduction zone, it generates rifting in the North American continent. Magma rises along cracks created by the rifting, and eventually erupts on the surface to form