Boulder Lake (Hubbard County)
Hubbard County, Minnesota - DNR stocking history, depth and survey data
Minnesota · Minnesota Department of Natural Resources (DNR) · DOW 29016200
DNR records show 6 stocking entries at Boulder Lake (Hubbard County) since 2016, most recently walleye fingerlings in 2024 (881 fish).
- Boulder Lake (Hubbard County) has 6 DNR stocking records across 5 years (2016-2024): walleye (6).
- The most-stocked species by count is walleye: 19,952 fish on record.
- Maximum depth 28 ft; surface area 341 acres, 180 littoral acres, 4.9 miles of shoreline, per the DNR lake survey.
- Average water clarity (Secchi depth) 11.1 ft.
- Fish species DNR lists here: black bullhead, black crappie, bluegill, brown bullhead, hybrid sunfish, largemouth bass, northern pike, pumpkinseed, rock bass, smallmouth bass, walleye, white sucker, and 2 more.
- 1 public access on the DNR list.
- Most recent DNR fish survey: (standard survey).
- Hubbard County, nearest town Dorset; DNR lake number (DOW) 29016200.
Depth map
Bathymetric contours from the Minnesota DNR lake survey mapped 10/18/1973 (orig map); depths in feet. Simplified for the web; not for navigation.
Stocking history
| Year | Species | Size | Number | Pounds |
|---|---|---|---|---|
| 2024 | Walleye | fingerlings | 881 | 151.0 |
| 2024 | Walleye | yearlings | 445 | 114.0 |
| 2022 | Walleye2 | fingerlings | 3,960 | 180.0 |
| 2020 | Walleye2 | fingerlings | 4,500 | 180.0 |
| 2018 | Walleye2 | fingerlings | 5,558 | 180.8 |
| 2016 | Walleye2 | fingerlings | 4,608 | 180.0 |
2 fish purchased by the DNR for stocking.
Field note · Minnesota stocks by year, not by truck day: walleye fry go in within weeks of ice-out, fingerlings and yearlings mostly in fall, and stream trout in spring and fall. A row here means the fish went in during that year; DNR adds the year's rows after the fact, so the current year can look empty until winter.
Public accesses
| Type | Owner | Where |
|---|---|---|
| concrete ramp | Minnesota DNR | Located on the northwest shore. |
DNR fish survey, 2023
| Species | Gear | Catch per net | Total catch | Avg lb |
|---|---|---|---|---|
| Largemouth bass | Standard electrofishing | 118.95 | 218 | 1.26 |
| Smallmouth bass | Standard electrofishing | 29.46 | 54 | 0.73 |
| Yellow perch | Standard gill nets | 11.11 | 100 | 0.19 |
| Yellow bullhead | Standard gill nets | 8.44 | 76 | 0.71 |
| Northern pike | Standard gill nets | 6.22 | 56 | 2.41 |
| Largemouth bass | Standard gill nets | 5.22 | 47 | 1.06 |
| Pumpkinseed | Standard gill nets | 3.56 | 32 | 0.26 |
| Black crappie | Standard gill nets | 3.44 | 31 | 0.36 |
| Walleye | Standard gill nets | 2.89 | 26 | 1.94 |
| Bluegill | Standard gill nets | 2.67 | 24 | 0.23 |
| Bluegill | Standard trap nets | 4.89 | 44 | 0.17 |
| Pumpkinseed | Standard trap nets | 2.89 | 26 | 0.26 |
| Yellow perch | Standard trap nets | 2.00 | 18 | 0.16 |
| Black crappie | Standard trap nets | 2.00 | 18 | 0.38 |
| Yellow bullhead | Standard trap nets | 1.22 | 11 | 0.65 |
| Walleye | Standard trap nets | 0.67 | 6 | 3.79 |
| Rock bass | Standard trap nets | 0.33 | 3 | 0.18 |
| White sucker | Standard trap nets | 0.22 | 2 | 3.68 |
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.
Boulder Lake is located in southern Hubbard County, 1.5 miles northeast of Dorset. Boulder has a surface area of 340 acres and a maximum depth of 28 feet. A public access with a concrete ramp is located on the west shore. Boulder provides angling opportunities for Walleye, Northern Pike, panfish, Largemouth Bass, and Smallmouth Bass. The Minnesota Department of Natural Resources (DNR) has classified Minnesota's lakes into 43 different types based on physical, chemical, and other characteristics. Boulder is in lake class 31. Class 31 lakes generally have hard water and a regularly shaped shoreline. Other class 31 lakes in the Park Rapids management area include Second, Fifth, Sixth, and Seventh Crow Wing Lakes, Duck, Evergreen, Hattie, Hinds, and Lower Twin. Walleye abundance was down from past surveys but within the range typical for this lake class. Sampled Walleye ranged in length from 9.2 to 26.6 inches and had an average length of 17.4 inches. Yellow Perch, an important forage species for Walleye were sampled in moderate numbers with fish measured up to 10.2 inches. Northern Pike were sampled in moderate numbers for this lake class, similar to past surveys. Sampled Northern Pike had an average length of 21.7 inches with fish measured up to 30.1 inches. Boulder supports both Largemouth Bass and Smallmouth Bass with Largemouth Bass the more abundant of the two species. Anglers will find good numbers of bass in the 12-15 inch size range. Boulder has good water quality, submerged and emergent vegetation that provides excellent habitat for bass and panfish. Present and past surveys have shown the panfish population to fluctuate from low to moderate numbers. Anglers will find good numbers of Bluegill and Pumpkinseed in the 6-8 inch size range and Black Crappie in the 9-10 inch size range. Other species sampled included moderate numbers of White Sucker and Yellow Bullhead, and low numbers of Rock Bass. Faucet snails, an aquatic invasive species (AIS) have been identified in Boulder. To avoid spreading AIS, lake users are required to remove all aquatic plants and animals from their watercraft and drain all water from their boat before leaving the lake.
Minnesota DNR survey narrative, .
All Minnesota stockings · every Minnesota lake with a page · state CSV · this lake on DNR LakeFinder
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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