Crook County Lake Quality
Wyoming, 9 lakes, measured by Wyoming DEQ
Crook County has 9 monitored lakes — a thin enough sample that one or two stressed lakes can move the county average noticeably. Use the per-lake pages below for what actually matters. 1 of those lake carry recent nutrient and algae readings. The county-level summary describes that subset, not every water body listed. Most monitored lakes in Crook County carry favourable nutrient and algae readings for Wyoming.
The county's lakes lean shallow, which makes the readings sensitive to wind, sediment-resuspension, and any nutrient inputs from the watershed. The cleanest measured lake is Keyhole Reservoir.
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Quick Answers for Crook County
Planning a trip? Check special fishing regulations for Keyhole Reservoir — or check the official Wyoming fishing regulations.
All Lakes in Crook County
9 lakes · 1 ranked on readings, 8 without enough sampling1 lake ranked on readings · 8 without enough sampling, hidden
| # | Lake | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|
| 1 | Keyhole ReservoirCrook | 7.7 ft | 20 µg/L | No recent samples | No recent samples | ✓ Public |
| Sundance Fairgrounds PondCrook | 4.1 ft | 10 µg/L | No recent samples | No recent samples | Not recorded | |
| Bush ReservoirCrook | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Battle Creek ReservoirCrook | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Kilpatrick ReservoirCrook | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Oak Creek ReservoirCrook | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Rocky Ford ReservoirCrook | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Hagerman ReservoirCrook | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Arrowhead ReservoirCrook | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded |
NR = no nutrient or algae reading on record. The measurements are published as the authority reports them. Where the data comes from.
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Source: the Wyoming Department of Environmental Quality. See data sources.