Liberty Lake
Logan County, Oklahoma167 acresView mapDirections
Oklahoma DEQ publishes the water-quality measurements for Liberty Lake. Here is what has been measured.
- 32 ft max depth
- Limited data
Liberty Lake in Logan County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 1.8 ft visibility. Surface area: 167 acres.
Liberty Lake is a 167-acre lake in Logan County, Oklahoma with an estimated average depth of about 32 feet.
Source: EPA Water Quality Portal sampling records, ODEQ, last sampled 2024-11-12. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Liberty Lake is safe to swim in today is a call for the Oklahoma Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Liberty Lake
These are the measurements Oklahoma DEQ publishes for Liberty Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Very murky, less than 1.8 ft of visibility. TSI 69.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 1.8ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 69 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Liberty Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~32 ft est.
Surface area
167 acres
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Oklahoma has not published bathymetry for Liberty Lake.
Lake Size & Watershed
Watershed (drainage) area
12 sq mi
HydroLAKES / HydroSHEDS
Shoreline
3.3 mi
HydroLAKES / HydroSHEDS
Elevation
1,010 ft
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.
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Stays near Liberty Lake
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Fishing Liberty Lake
Water Quality Trend: Stable
Based on 4 years of monitoring (2016–2024).
Water clarity
Stable4 years
Reservoir Info (USACE NID)
Liberty Lake is a man-made reservoir impounded by the Liberty Lake (completed 1948), built primarily for water supply on the Tributary to Cottonwood Creek; earth-type dam, 47 ft tall and 2,030 ft long.
- Surface area
- 167 ac
- Normal storage
- 2,740 ac-ft
- Max storage
- 4,670 ac-ft
- Drainage area
- 11.4 sq mi
- Hazard class
- High
- Owner
- City of Guthrie
Source: USACE National Inventory of Dams, NID ID OK02122 · Operator website
Nearby Lakes in Logan County
Frequently asked questions about Liberty Lake
Where is Liberty Lake?
- Liberty Lake is a lake in Logan County, Oklahoma. Its water-quality measurements are published by Oklahoma DEQ and shown on this page as reported.
What is the water quality of Liberty Lake?
- Liberty Lake in Logan County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 1.8 ft visibility. Surface area: 167 acres.
Is Liberty Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Liberty Lake?
- No published bathymetric survey covers Liberty Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 32 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate. The lake covers 167 acres.
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Where this data comes from
31 measurements from 3 monitoring stations, 2016–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- OWRB Lakes Monitoring
OKWRB-LAKES_WQX31 samples · 2016–2024
Analytical methods
- OWRB Lakes Field Data Collection
- Determination of Turbidity
Monitoring station identifiers (3)
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)