Cottage Grove Lake
Cottage Grove · Lane County County · Wikipedia Oregon lakes · 1,075 acres

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Essentials
At a glance
- Hours
See official page for current hours
- Amenities
On site
Visitor amenities
…near water
- Boat Launchwater
- Fishingwater
Park size map
Official park boundary from GIS.
Overview
About this park
Cottage Grove Lake is a reservoir on the Coast Fork Willamette River in Lane County, Oregon, United States. The lake is about 3 miles (4.8 km) long. Cottage Grove Dam, which impounds the lake, is 1,750 feet (530 m) long and 95 feet (29 m) high. It was completed in 1942 as one of the 13 dams built by the United States Army Corps of Engineers in the Willamette River basin. It is about 5 miles (8 km) south of Cottage Grove at river mile 29 (kilometer 47). The dam's main function, in conjunction with the Dorena Dam on the Row River, a Coast Willamette tributary, is flood control. Other functions are to supply water for irrigation and improved river navigation. The lake and its surrounds are used for recreation, including boating, camping, fishing, picnicking, and bird-watching.
- Location: Lane County, Oregon, United States
- Type: Mesotrophic reservoir
- Shore length: 10.6 mi}}
- Surface elevation: 794 ft}}
- Max depth: 73 ft}}
Setting
Landscape & setting
Lake facts (Wikipedia):
- Surface area: 1025.9 acre}}
- Inflow: Coast Fork Willamette River
- Outflow: Coast Fork Willamette River
Access
Access & hours
Source: https://en.wikipedia.org/wiki/Cottage_Grove_Lake (Wikipedia / Wikimedia, CC BY-SA). Verify access, seasons, and regulations with the land manager before visiting.
Background
History & notes
List note: an impoundment of the Coast Fork Willamette River created by Cottage Grove Dam Map / bathymetry image: https://commons.wikimedia.org/wiki/Special:FilePath/%7C_alt_bathymetry_________%3D?width=1600
Today
Weather
Forecast is advisory — confirm park hours before you go.
Nearby
More parks in Cottage Grove
Data quality
Sources
Confidence checks: coordinates · website · image · hours · amenities (and last verified when known).
Confidence score
74/ 100
BLM OR Hydrography Waterbody (Lakes)
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