Castle Rock Lake
Rosebud County, Montana153 acresView mapDirections
No nutrient or algae sampling on record from Montana DEQ for this lake.
Castle Rock Lake in Rosebud County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Surface area: 153 acres.
Castle Rock Lake is a 153-acre lake in Rosebud County, Montana.
Source: EPA Water Quality Portal sampling records, Montana DEQ. 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 Castle Rock Lake is safe to swim in today is a call for the Montana Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Castle Rock Lake
These are the measurements Montana DEQ publishes for Castle Rock 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.
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Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
153 acres
No bathymetric survey has been published for Castle Rock Lake, so its depth is not documented here.
Stays via Stay22
Stays near Castle Rock Lake
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Frequently asked questions about Castle Rock Lake
Where is Castle Rock Lake?
- Castle Rock Lake is a lake in Rosebud County, Montana. Its water-quality measurements are published by Montana DEQ and shown on this page as reported.
What is the water quality of Castle Rock Lake?
- Castle Rock Lake in Rosebud County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Surface area: 153 acres.
Is Castle Rock 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 Castle Rock Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.