Minnesota · DNR survey data
Hills Reservoir
Hills Reservoir covers 6 acres in Rock County, running to 12 feet, last surveyed by the DNR in 2006. The Minnesota DNR has not published bathymetry for this lake, so there is no depth map here, just the survey record: what the nets held and how big it ran.
DNR survey data
Fish species
No recent survey rating.
No recent survey rating.
Northern pikePresent2per trap net19"Typical30"Biggest
Lengths measured · 10 fish
Recent · 2006Lengths measured · 10 fish
2006Lengths measured · 2 fish
2000Only 2 fish measured that year — too few to read as a shape.
BluegillStocked · 2025Just a few10per trap net2"Typical8"Biggest
Lengths measured · 111 fish
Recent · 2006Lengths measured · 111 fish
2006Lengths measured · 224 fish
2000Lengths measured · 35 fish
1995CrappieFair numbers14per trap net7"Typical15"Biggest
Lengths measured · 70 fish
Recent · 2006Lengths measured · 70 fish
2006Lengths measured · 560 fish
2000Lengths measured · 249 fish
1995No recent survey rating.
Rates come from standard DNR survey gear (gill nets, trap nets, electrofishing), judged against statewide benchmarks for the same gear — which is why the same number of fish per net can read differently for two species. Where the standard gear can't count a species reliably, the page shows presence and size only. Typical is the middle fish of those measured. Open a row for the full length spread, survey by survey. You can read every number on this page without an app or an account.
DNR stocking records
Stocking history
| Year | Species | Stocked |
|---|---|---|
| 2025 | Bluegill Sunfish | 160 adults |
| 2023 | Bluegill Sunfish | 180 adults |
| 2022 | Bluegill Sunfish | 148 adults |
| 2021 | Bluegill Sunfish | 128 adults |
| 2019 | Bluegill Sunfish | 150 adults |
| 2017 | Bluegill Sunfish | 240 adults |
| 2016 | Bluegill Sunfish | 210 adults |
Recent reports
Hills Reservoir fishing reports
Recent reports on Hills Reservoir from guides, tournaments and regular anglers. Anything posted in the last two weeks also bumps the matching spots on the live map, so you'll see a "matches a recent report" tag on them.
Within 30 miles
Nearby lakes
- Split Rock Reservoir · 96 ac · 25.8 mi
Quick answers
Frequently asked questions
Is there a depth map for Hills Reservoir?
The Minnesota DNR has not published bathymetry for Hills Reservoir, so this page carries the survey record instead: species, catch rates and stocking history.
What fish are in Hills Reservoir?
The most recent DNR survey (2006) recorded walleye, largemouth bass, northern pike, bluegill, crappie, yellow perch, channel catfish.
Is Hills Reservoir stocked?
Yes. The DNR stocked bluegill sunfish in 2025; the stocking table on this page lists every year back to 2016.
When was Hills Reservoir last surveyed?
The Minnesota DNR last surveyed Hills Reservoir in 2006, the most recent of 4 surveys on record. A survey that old is a starting point, not a current reading.
Survey numbers are the Minnesota DNR's. How this site reads them →
Page updated .