Timothy Lake

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Timothy Lake
Clear and timothy lakes.jpg
Clear Lake and Timothy Lake
Location Clackamas County, Oregon, United States
Coordinates 45°07′16″N 121°47′08″W / 45.121022°N 121.785654°W / 45.121022; -121.785654Coordinates: 45°07′16″N 121°47′08″W / 45.121022°N 121.785654°W / 45.121022; -121.785654[1]
Basin countries United States
Surface area 2.17 square miles (5.6 km2)[2]
Average depth 45 feet (14 m)[2]
Max. depth 80 feet (24 m)[2]
Surface elevation 3,227 feet (984 m)[1]

Timothy Lake is a lake about 50 miles (80 km) southeast of Portland, Oregon, United States. It is in proximity to Clear Lake and an impoundment of the Oak Grove Fork Clackamas River.

The compacted-earth Timothy Lake Dam was built by Portland General Electric in 1956 to regulate seasonal water flow to Lake Harriet downstream.[3] The dam, 110 feet high and impounding 81,000 acre-feet, does not generate any hydroelectric power itself. In the summer, the lake is a very popular destination for camping, boating, hiking, horseback riding, and mountain biking.[2]

See also[edit]


  1. ^ a b "Timothy Lake". Geographic Names Information System. United States Geological Survey. 22 May 1986. Retrieved 2011-07-18. 
  2. ^ a b c d "Timothy Lake". Mt. Hood National Forest. Retrieved 2011-07-10. 
  3. ^ Taylor, Barbara (February 1999). "Salmon and steelhead runs and related events of the Clackamas River basin: a historical perspective" (PDF). Portland General Electric. p. 26. Retrieved 2008-11-03. 

External links[edit]