Minnesota · DNR survey data
Colby Lake
Colby Lake covers 71 acres in Washington County, running to 11 feet, last surveyed by the DNR in 2015. 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
BluegillJust a few8.3per trap net3"Typical8"Biggest
Lengths measured · 88 fish
Recent · 2015Lengths measured · 88 fish
2015Lengths measured · 559 fish
2007Lengths measured · 2 fish
2002Only 2 fish measured that year — too few to read as a shape.
CrappieJust a few1.1per trap net6"Typical8"Biggest
Lengths measured · 22 fish
Recent · 2015Lengths measured · 22 fish
2015Lengths measured · 220 fish
2007Lengths measured · 125 fish
2002Yellow perchOne of the best around38per gill net6"Typical9"Biggest
Lengths measured · 41 fish
Recent · 2015Lengths measured · 41 fish
2015Lengths measured · 1 fish
2007Only 1 fish measured that year — too few to read as a shape.
Lengths measured · 183 fish
2002Rates 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 |
|---|---|---|
| 2024 | Walleye | 500,000 fry |
| 2023 | Walleye | 500,000 fry |
| 2022 | Walleye | 400,000 fry |
| 2019 | Walleye | 2,000,000 fry |
| 2016 | Channel Catfish | 10,000 |
| 2016 | Walleye | 420,000 fry |
Recent reports
Colby Lake fishing reports
Recent reports on Colby 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.
Public water access
Getting on the water
- Colby Lake Fishing Pier (fishing pier)
Within 30 miles
Nearby lakes
- Powers Lake · 58 ac · 1.4 mi
- Carver Lake · 50 ac · 3.5 mi
- Battle Creek Lake · 106 ac · 4 mi
- Tanners Lake · 74 ac · 4.8 mi
- Elmo Lake · 257 ac · 5.5 mi
- Beaver Lake · 86 ac · 6.5 mi
- Jane Lake · 158 ac · 7.5 mi
- Olson Lake · 87 ac · 7.8 mi
Quick answers
Frequently asked questions
Is there a depth map for Colby Lake?
The Minnesota DNR has not published bathymetry for Colby Lake, so this page carries the survey record instead: species, catch rates and stocking history.
What fish are in Colby Lake?
The most recent DNR survey (2015) recorded largemouth bass, northern pike, bluegill, crappie, yellow perch, channel catfish.
Does Colby Lake have a public access?
Yes. Colby Lake has one public access site: Colby Lake Fishing Pier (fishing pier).
Is Colby Lake stocked?
Yes. The DNR stocked walleye in 2024; the stocking table on this page lists every year back to 2016.
When was Colby Lake last surveyed?
The Minnesota DNR last surveyed Colby Lake in 2015, 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 .