Minnesota · DNR survey data
Shamrock Impoundment Lake
Shamrock Impoundment Lake covers 9 acres in Houston County, running to 15 feet, last surveyed by the DNR in 2008. 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.
Open Shamrock Impoundment Lake in the live map → Write a report
DNR survey data
Fish species
Largemouth bassGood numbers70.8per hr (electrofishing)12"Typical19"Biggest
Lengths measured · 59 fish
Recent · 2008Lengths measured · 59 fish
2008Lengths measured · 8 fish
2000Only 8 fish measured that year — too few to read as a shape.
Lengths measured · 13 fish
1996BluegillOne of the best around160per trap net6"Typical7"Biggest
Lengths measured · 800 fish
Recent · 2008Lengths measured · 800 fish
2008Lengths measured · 348 fish
2000Lengths measured · 104 fish
1996CrappieOne of the best around48.8per trap net7"Typical11"Biggest
Lengths measured · 244 fish
Recent · 2008Lengths measured · 244 fish
2008Lengths measured · 39 fish
2000Lengths measured · 8 fish
1996Only 8 fish measured that year — too few to read as a shape.
No 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 |
|---|---|---|
| 2017 | Brown Trout | 5 yearlings |
Recent reports
Shamrock Impoundment Lake fishing reports
Recent reports on Shamrock Impoundment Lake 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
- South Fork Lake · 36 ac · 2.6 mi
- Winona Lake · 308 ac · 29.3 mi
Quick answers
Frequently asked questions
Is there a depth map for Shamrock Impoundment Lake?
The Minnesota DNR has not published bathymetry for Shamrock Impoundment Lake, so this page carries the survey record instead: species, catch rates and stocking history.
What fish are in Shamrock Impoundment Lake?
The most recent DNR survey (2008) recorded largemouth bass, northern pike, bluegill, crappie, yellow perch.
Is Shamrock Impoundment Lake stocked?
Yes. The DNR stocked brown trout in 2017.
When was Shamrock Impoundment Lake last surveyed?
The Minnesota DNR last surveyed Shamrock Impoundment Lake in 2008, the most recent of 7 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 .