Keyhole Falls
Keyhole Falls is the unofficial name for the largest waterfall along the Lillooet River in British Columbia, Canada. The falls are 115 feet (35 m) high and are a punchbowl type of waterfall.[1]
| Keyhole Falls | |
|---|---|
 | |
| Location | Near the mouth of Salal Creek |
| Coordinates | 50°40′34.08″N 123°28′17.35″W |
| Type | Punchbowl |
| Total height | 115 feet (35 m) |
| Number of drops | 1 |
| Longest drop | 115 feet (35 m) |
| Watercourse | Lillooet River |
It is called Keyhole Falls because it resembles a giant old-fashioned keyhole.[1]
Formation
Keyhole Falls was formed when the Lillooet River was dammed with breccia from a Plinian eruption at the Mount Meager massif about 2350 years ago. The thick breccia soon eroded from water activity, forming Keyhole Falls. There was a massive flood when the water first broke through the breccia. The flood was big enough that small house-sized blocks of breccia were carried away during the flood.[2]
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gollark: Not very much as I had the majority in place already.
References
- Swan, Bryan (2005). "Keyhole Falls". Waterfalls of the Pacific Northwest. Retrieved 2007-11-08.
- Catalogue of Canadian Volcanoes: Mount Meager Archived 2009-06-06 at the Wayback Machine
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