Pillow Ridge
| Pillow Ridge | |
|---|---|
| Highest point | |
| Elevation | 2,400 m (7,900 ft) |
| Coordinates | 57°45′34″N 130°39′6″W |
| Geography | |
| Location | British Columbia, Canada |
| District | Cassiar Land District |
| Parent range | Tahltan Highland |
| Topo map | NTS 104G15 Buckley Lake |
| Geology | |
| Age of rock | Pleistocene |
| Mountain type | Subglacial mound |
| Type of rock | Pillow Formation alkali basalt |
| Volcanic region | Northern Cordilleran Province |
| Last eruption | Pleistocene |
Pillow Ridge is a ridge of the Tahltan Highland in northern British Columbia, Canada, located southeast of Telegraph Creek. It extends northwest from Mount Edziza in Mount Edziza Provincial Park.
History
As its name suggests, Pillow Ridge was named on January 2, 1980 by the Geological Survey of Canada for the classic exposures of subaqueous pillow lava that form the ridge.
Geology
Pillow Ridge is a volcanic feature associated with the Mount Edziza volcanic complex which in turn form part of the Northern Cordilleran Volcanic Province. It is a subglacial mound that formed in the Pleistocene period when this area was buried beneath glacial ice during the last ice age.