Hart Lake
Lake County, OregonView mapDirections
No nutrient or algae sampling on record from Oregon DEQ for this lake.
- 76 ft max depth
- Public access
- Limited data
Ask about Hart Lake
Answers come straight from the public measurements and survey records on this page.
Hart Lake in Lake County, Oregon has water-quality measurements published by Oregon DEQ, shown here as reported.
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Hart Lake is a lake in Lake County, Oregon with an estimated average depth of about 76 feet. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, Oregon DEQ, last sampled 2023-10-18. Grade methodology: LakeQuality methodology.
What Hart Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Hart Lake 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 Hart Lake
These are the measurements Oregon DEQ publishes for Hart Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data.
| Metric | Value | EPA condition class |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples |
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~76 ft est. |
| Average Depth | ~7 ft est. |
| Public Access | Yes |
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Oregon has not published bathymetry for Hart Lake.
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
Recreation & Access
- Hart Lake LandingPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Hart Lake
Nearby Lakes in Lake County
Frequently asked questions about Hart Lake
Where is Hart Lake?
- Hart Lake is a lake in Lake County, Oregon. Its water-quality measurements are published by Oregon DEQ and shown on this page as reported.
What is the water quality of Hart Lake?
- Hart Lake in Lake County, Oregon has water-quality measurements published by Oregon DEQ, shown here as reported.
Is Hart Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Hart Lake?
- No published bathymetric survey covers Hart Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 76 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
Are there boat ramps on Hart Lake?
- Hart Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Hart Lake Landing. Public access is listed as yes.
Explore Hart Lake across LakeQuality
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Where this data comes from
2 measurements from 1 monitoring station, 2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- USGS Oregon Water Science Center
USGS-OR2 samples · 2023
Analytical methods
- YSI Environmental, sensor 6136
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)
Named boat-access points from the USGS National Boat Ramps inventory