Dewey Lake
St. Louis County, Minnesota - DNR stocking history, depth and survey data
Minnesota · Minnesota Department of Natural Resources (DNR) · DOW 69091200
Dewey Lake has no DNR stocking rows in LakeFinder; this page carries its DNR depth, access and survey data.
- Dewey Lake shows no stocking records in Minnesota DNR LakeFinder as of .
- Maximum depth 40 ft; surface area 201 acres, 76 littoral acres, 4.0 miles of shoreline, per the DNR lake survey.
- Average water clarity (Secchi depth) 12.5 ft.
- Fish species DNR lists here: black crappie, bluegill, largemouth bass, northern pike, pumpkinseed, rock bass, tullibee (cisco), walleye, white sucker, yellow perch.
- 1 public access on the DNR list.
- Most recent DNR fish survey: (standard survey).
- St. Louis County, nearest town Side Lake; DNR lake number (DOW) 69091200.
Depth map
Bathymetric contours from the Minnesota DNR lake survey; depths in feet. Simplified for the web; not for navigation.
Public accesses
| Type | Owner | Where |
|---|---|---|
| earthen ramp | UKN | Public access on SE end of lake; off of Co Rd 931. Access title is clouded but state assumes ownership. |
DNR fish survey, 2007
| Species | Gear | Catch per net | Total catch | Avg lb |
|---|---|---|---|---|
| Largemouth bass | Standard electrofishing | 33.58 | 34 | 1.56 |
| Bluegill | Survey seining | 18.67 | 56 | 0.00 |
| Blacknose shiner | Survey seining | 15.00 | 45 | 0.00 |
| Brassy minnow | Survey seining | 12.33 | 37 | 0.00 |
| Largemouth bass | Survey seining | 4.33 | 13 | 0.00 |
| Golden shiner | Survey seining | 4.00 | 12 | 0.00 |
| Pumpkinseed | Survey seining | 1.67 | 5 | 0.00 |
| Black crappie | Survey seining | 1.33 | 4 | 0.00 |
| Common shiner | Survey seining | 1.00 | 3 | 0.00 |
| Bluegill | Standard trap nets | 9.50 | 76 | 0.13 |
| Black crappie | Standard trap nets | 1.38 | 11 | 0.29 |
| Pumpkinseed | Standard trap nets | 0.88 | 7 | 0.24 |
| Northern pike | Standard trap nets | 0.75 | 6 | 1.87 |
| Rock bass | Standard trap nets | 0.50 | 4 | 0.25 |
| Yellow perch | Standard trap nets | 0.12 | 1 | 0.06 |
| Northern pike | Standard gill nets | 6.50 | 39 | 3.40 |
| Yellow perch | Standard gill nets | 5.17 | 31 | 0.09 |
| Tullibee (cisco) | Standard gill nets | 2.50 | 15 | 1.70 |
| Bluegill | Standard gill nets | 1.00 | 6 | 0.16 |
| Black crappie | Standard gill nets | 1.00 | 6 | 0.33 |
| White sucker | Standard gill nets | 0.50 | 3 | 1.95 |
| Rock bass | Standard gill nets | 0.33 | 2 | 0.33 |
| Walleye | Standard gill nets | 0.33 | 2 | 2.49 |
Catch per net (CPUE) is the DNR survey's count per gill net or trap net set; higher means more of that species were sampled, not a fishing forecast. Top species per gear shown; where we have no verified common name for a DNR code, the code itself is shown.
Northern pike was the most abundant species sampled in gill nets. Pike were sampled at a rate exceeding the expected rate for lakes similar to Dewey Lake. The average weight was near the upper end of the expected range, while the average length was 24.3 inches. The longest fish sampled was 33.6 inches. A quality fishery exists with almost a quarter of captured pike exceeding the preferred length of 28 inches. Anglers can help the northern pike size structure and population by releasing fish larger than 24 inches and making use of the smaller sized fish. Comparing between previous assessments indicates an increasing trend in gill net catch rates. Growth was shown to be near the statewide average. Passive sampling gears tend to inadequately sample bass populations. An active capture technique, electrofishing, was used to sample the largemouth bass population. Largemouth were sampled at a rate of 33.6 fish per hour. Captured largemouth averaged 13 inches long, and the longest was 19.7 inches. A quality fishery exists with a good portion of the largemouth population above 15 inches. Seining in the shallows sampled young-of-the-year largemouth, indicating natural reproduction. Growth was shown to be near the statewide average for most ages. This was the first assessment that electrofishing was used to sample the bass population. There was no bass sampled in the passive gears. The first and only time largemouth bass had been sampled previous to the 2007 lake survey was 1982. Two walleye were sampled at a rate well below the expected range. Previous assessments had catch rates similar to the 2007 assessment despite previous stockings. Because there was limited to no returns, walleye stocking was discontinued in 1986. It is doubtful that walleye are naturally occurring due to the lack of quality spawning habitat. It is possible that a few walleye have immigrated from the Shannon River system. Tullibee were sampled at a rate within the expected range. This was a slight increase above the previous assessment, but below the historical average. Lengths averaged 16 inches, and the longest fish sampled was 19 inches. Historically, relatively larger sized fish have been sampled. Yellow perch were sampled at a rate within the expected range. Historically, perch have been sampled in relatively low abundance. Angling opportunities are limited with an average length of six inches, and almost 100% of perch sampled were less than seven inches. Growth was shown to be near the statewide average. Black crappie were sampled at rates within the expected ranges for both gill…
Minnesota DNR survey narrative, .
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Stocking rows, depths, accesses and survey figures are Minnesota DNR LakeFinder data as of 2026-09-02; contours are the DNR bathymetric survey. Regulations, slot limits and special rules are on the DNR page linked above, not here.
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