Keyhole Falls
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| Location | Near the mouth of Salal Creek |
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| Coordinates | 50°40′34.08″N 123°28′17.35″W / 50.6761333°N 123.4714861°W |
| Type | Punchbowl |
| Total height | 75 feet (23 m) |
| Height of longest drop | 75 feet (23 m) |
| Number of drops | 1 |
| Watercourse | Lillooet River |
Keyhole Falls is the unofficial name for the largest waterfall along the Lillooet River in British Columbia, Canada. The falls are 75 feet (23 m) high and are a punchbowl type of waterfall.[1]
It is called Keyhole Falls because it resembles a giant old-fashioned keyhole.[1]
[edit] Formation
Keyhole Falls was formed when the Lillooet River was dammed with breccia from a Plinian eruption at Mount Meager 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]
[edit] References
- ^ a b Swan, Bryan (2005). "Keyhole Falls". http://www.waterfallsnorthwest.com/bc_waterfall.php?num=229. Retrieved 2007-11-08.
- ^ Catalogue of Canadian Volcanoes: Mount Meager
Coordinates: 50°40′34.08″N 123°28′17.35″W / 50.6761333°N 123.4714861°W
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