Tuya Range | |
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![]() Map of some features in theTuya Volcanic Field, which is part of the Tuya Range | |
Highest point | |
Peak | Ash Mountain |
Elevation | 2,115 m (6,939 ft) |
Coordinates | 59°20′39.8″N130°30′31″W / 59.344389°N 130.50861°W /59.344389; -130.50861 |
Geography | |
Country | Canada |
Province | British Columbia |
Parent range | Stikine Ranges |
Geology | |
Orogeny | Volcanism |
Rock age | Pleistocene |
Rock type | Tuyas |
TheTuya Range is amountain range in theStikine Ranges of theCassiar Mountains in the far north of theCanadian province ofBritish Columbia, near its border with theYukon Territory and to the southwest ofWatson Lake, Yukon, which is the nearest major settlement.
The northern and northwest side of the range is drained by tributaries of theCottonwood River; the southern and southwestern flank is formed byTuya Lake and its tributary,Butte Creek, while the southeast flank is formed by the Cottonwood River and its tributaries (the Cottonwood is a tributary of theDease River, the Tuya of theStikine). The range's northern boundary is formed by the upperJennings River, a tributary of theTeslin River system which is part of theYukon River drainage. Thus, the triple divide between theMackenzie,Stikine, andYukon River basins lies within the range. TheContinental Divide transits the eastern side of the range, though does not touch on its highest summit,Ash Mountain, which is at the north end of the range and is within the basin of the Jennings. The range has an area of 777 km2 (300 sq mi) and, other than Ash Mountain, includesTuya Butte,Mathews Tuya,Caribou Tuya, andSouth Tuya. All of these are part of theTuya Volcanic Field, which includes other volcanic features north and west of the range
Ash Mountain 2,115 m (6,939 ft) is the highest tuya in the range. The nearbyKawdy Plateau to the west, to the southwest of Kawdy Mountain, is near-entirely formed by the spectacularshield volcano ofLevel Mountain.
Tuya Butte 1,685 m (5,528 ft) was the first tuya analyzed in the geological literature, and its name has since become standard worldwide amongvolcanologists in referring to and writing about tuyas. TheTuya Mountains Provincial Park was recently established to protect this unusual landscape, which lies north ofTuya Lake and south of theJennings River near the boundary with the Yukon Territory.
Black Spruce is a dominant tree in this area; this species is near the western limit of its range.[1]