Big Flag Lake
Rogers County, Oklahoma47 acresView mapDirections
No nutrient or algae sampling on record from Oklahoma DEQ for this lake.
Big Flag Lake in Rogers County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Surface area: 47 acres.
Big Flag Lake is a 47-acre lake in Rogers County, Oklahoma.
Source: EPA Water Quality Portal sampling records, ODEQ. Methodology: how these readings are compared.
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Big Flag 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 Big Flag Lake
These are the measurements Oklahoma DEQ publishes for Big Flag 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. TSI undefined.
Ask about Big Flag Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
47 acres
Shoreline
1.4 mi
No bathymetric survey has been published for Big Flag Lake, so its depth is not documented here.
Stays via Stay22
Stays near Big Flag Lake
Compare lakeside cabins, hotels, and vacation rentals near Big Flag Lake in Rogers County, Oklahoma — 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 Big Flag Lake
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Frequently asked questions about Big Flag Lake
Where is Big Flag Lake?
- Big Flag Lake is a lake in Rogers County, Oklahoma. Its water-quality measurements are published by Oklahoma DEQ and shown on this page as reported.
What is the water quality of Big Flag Lake?
- Big Flag Lake in Rogers County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Surface area: 47 acres.
Is Big Flag Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
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Where this data comes from
Measurements for Big Flag Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.