Willow Valley Reservoir
Klamath County, Oregon543 acresView mapDirections
No nutrient or algae sampling on record from Oregon DEQ for this lake.
- Impaired · Temperature
- Public access
Willow Valley Reservoir in Klamath County, Oregon has water-quality measurements published by Oregon DEQ, shown here as reported. Surface area: 543 acres.
Willow Valley Reservoir is a 543-acre lake in Klamath County, Oregon. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, Oregon DEQ. Methodology: how these readings are compared.
What Willow Valley Reservoir is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
- Camping1 public campground nearby
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Willow Valley Reservoir is listed impaired under Clean Water Act §303(d) (IR 4A) for temperature. Check local advisories before you swim.
Whether Willow Valley Reservoir is safe to swim in today is a call for the Oregon Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Willow Valley Reservoir
These are the measurements Oregon DEQ publishes for Willow Valley Reservoir, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. TSI undefined.
Ask about Willow Valley Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
543 acres
Shoreline
6.9 mi
Public access
Yes
Listed by Oregon DEQ
No bathymetric survey has been published for Willow Valley Reservoir, so its depth is not documented here.
Recreation & Access
- Willow ValleyPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Public campgrounds near Willow Valley Reservoir
- Campsite0.5 km
Nearest public campgrounds in the USGS National Map inventory, within about 3 miles. An empty list means USGS records no campground that close, which is not the same as camping being unavailable. Where the source gives an official reservation link, it is used; the cabin and hotel search does not cover campsites. More camping lakes
Stays via Stay22
Stays near Willow Valley Reservoir
Compare lakeside cabins, hotels, and vacation rentals near Willow Valley Reservoir in Klamath County, Oregon — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
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Fishing Willow Valley Reservoir
EPA Impairment Status
Willow Valley Reservoir is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4A).
Causes of impairment
Designated uses not supporting: Aquatic life.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit OR_LK_1801020404_05_100400 · Official waterbody report
Nearby Lakes in Klamath County
Frequently asked questions about Willow Valley Reservoir
Where is Willow Valley Reservoir?
- Willow Valley Reservoir is a lake in Klamath County, Oregon. Its water-quality measurements are published by Oregon DEQ and shown on this page as reported.
What is the water quality of Willow Valley Reservoir?
- Willow Valley Reservoir in Klamath County, Oregon has water-quality measurements published by Oregon DEQ, shown here as reported. Surface area: 543 acres.
Is Willow Valley Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Willow Valley Reservoir is listed impaired under Clean Water Act §303(d) (IR 4A) for temperature. Check local advisories before you swim.
Are there boat ramps on Willow Valley Reservoir?
- Willow Valley Reservoir has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Willow Valley. Public access is listed as yes.
Can I fish at Willow Valley Reservoir?
- Willow Valley Reservoir has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Oregon's fish and wildlife agency, so check its current regulations before you go.
Are there campgrounds on Willow Valley Reservoir?
- Willow Valley Reservoir has 1 public campground from USGS The National Map within 5 km, including Campsite. This is a location join, not a booking. Cabins and hotels are listed separately; campsite reservations use the official link when the source provides one.
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Where this data comes from
Measurements for Willow Valley Reservoir come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Named boat-access points from the USGS National Boat Ramps inventory
Public campgrounds from USGS The National Map Structures, within about 3 miles