Mount Silverthrone
| Mount Silverthrone | |
|---|---|
Northeast face of Mount Silverthrone
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| Highest point | |
| Elevation | 2,864 m (9,396 ft) |
| Prominence | 975 m (3,199 ft) |
| Listing | |
| Coordinates | 51°31′41.9″N 126°06′47.9″W / 51.528306°N 126.113306°W |
| Geography | |
| Location | British Columbia, Canada |
| Parent range | Pacific Ranges |
| Topo map | NTS 92M/09 |
| Geology | |
| Mountain type | Lava dome |
| Volcanic arc/belt | Canadian Cascade Arc Pemberton/Garibaldi Belt |
| Climbing | |
| First ascent | 1936 Don Munday, Phyllis Munday, H. Hall, Hans Fuhrer |
Mount Silverthrone, officially named Silverthrone Mountain, is a mountain in the Pacific Ranges of the Coast Mountains of British Columbia, Canada, located over 320 km (200 mi) northwest of the city of Vancouver and about 50 km (30 mi) west of Mount Waddington, British Columbia, Canada. It is the highest peak in the Ha-Iltzuk Icefield, which is the largest icefield in the Coast Mountains south of the Alaska Panhandle.
Mount Silverthrone is an eroded lava dome on the northeast edge of a large caldera complex called the Silverthrone Caldera. It lies within the Coast Plutonic Complex, which is the single largest contiguous granite outcropping in the world. The plutonic and metamorphic rocks extend approximately 1,800 kilometers on the coast of British Columbia, southwestern Yukon and southeastern Alaska. In addition, Garibaldi, Meager, Cayley and Silverthrone areas are of recent volcanic origin. The volcanic terrain in the Silverthrone area is very similar to the Mount Meager volcanic complex further south. However, there is much more ice.
Mount Silverthrone is perhaps one of the most heavily glaciated volcanic peaks in southwestern British Columbia. It has a topographic prominence of approximately 975 m (3,200 ft), greater than any other volcano in southwestern British Columbia. The extensive icefields around Mount Silverthrone are receding and are small compared to their former extent, but they are an impressive indication of how much of British Columbia looked 10,000 years or more ago. Silverthrone contains one of the few calderas buried beneath the ice caps of western Canada, another example being Mount Edziza in far northwestern British Columbia.
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Wikipedia