Keyhole Falls

Keyhole Falls
Location Near the mouth of Salal Creek
Coordinates 50°40′34.08″N 123°28′17.35″W / 50.6761333°N 123.4714861°W / 50.6761333; -123.4714861
Type Punchbowl
Total height 115 feet (35 m)
Number of drops 1
Longest drop 115 feet (35 m)
Watercourse Lillooet River

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]

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 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]

References

  1. 1 2 Swan, Bryan (2005). "Keyhole Falls". Waterfalls of the Pacific Northwest. Retrieved 2007-11-08.
  2. ↑ Catalogue of Canadian Volcanoes: Mount Meager

Coordinates: 50°40′34.08″N 123°28′17.35″W / 50.6761333°N 123.4714861°W / 50.6761333; -123.4714861


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