South Twin Lake (Itasca County)
Itasca County, Minnesota - DNR stocking history, depth and survey data
Minnesota · Minnesota Department of Natural Resources (DNR) · DOW 31019100
South Twin Lake (Itasca County) has no DNR stocking rows in LakeFinder; this page carries its DNR depth, access and survey data.
- South Twin Lake (Itasca County) shows no stocking records in Minnesota DNR LakeFinder as of .
- Maximum depth 40 ft; surface area 141 acres, 63 littoral acres, 2.9 miles of shoreline, per the DNR lake survey.
- Average water clarity (Secchi depth) 14.2 ft.
- Fish species DNR lists here: black crappie, bluegill, bowfin (dogfish), largemouth bass, northern pike, pumpkinseed, rock bass, shorthead redhorse, tullibee (cisco), walleye, white sucker, yellow bullhead, and 1 more.
- 1 public access on the DNR list.
- Most recent DNR fish survey: (standard survey).
- Itasca County, nearest town Marble; DNR lake number (DOW) 31019100.
Depth map
Bathymetric contours from the Minnesota DNR lake survey mapped 7/22/1958 (orig map); depths in feet. Simplified for the web; not for navigation.
Public accesses
| Type | Owner | Where |
|---|---|---|
| C | UKN | - Through channel from North Twin Lake which has a public access. |
DNR fish survey, 2008
| Species | Gear | Catch per net | Total catch | Avg lb |
|---|---|---|---|---|
| Largemouth bass | Standard electrofishing | 99.00 | 99 | 0.60 |
| Northern pike | Standard gill nets | 15.67 | 94 | 1.18 |
| Bluegill | Standard gill nets | 6.83 | 41 | 0.10 |
| Black crappie | Standard gill nets | 2.83 | 17 | 0.19 |
| Yellow bullhead | Standard gill nets | 2.17 | 13 | 0.85 |
| Pumpkinseed | Standard gill nets | 2.00 | 12 | 0.28 |
| Tullibee (cisco) | Standard gill nets | 2.00 | 12 | 1.14 |
| Rock bass | Standard gill nets | 1.50 | 9 | 0.35 |
| White sucker | Standard gill nets | 1.33 | 8 | 1.39 |
| Bluegill | Standard trap nets | 5.11 | 46 | 0.11 |
| Bowfin (dogfish) | Standard trap nets | 0.78 | 7 | 5.98 |
| Largemouth bass | Standard trap nets | 0.56 | 5 | 0.98 |
| Yellow perch | Standard trap nets | 0.33 | 3 | 0.17 |
| Black crappie | Standard trap nets | 0.33 | 3 | 0.43 |
| Northern pike | Standard trap nets | 0.22 | 2 | 1.45 |
| Rock bass | Standard trap nets | 0.22 | 2 | 0.25 |
| Pumpkinseed | Standard trap nets | 0.22 | 2 | 0.15 |
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.
South Twin is a 179 acre lake located just south of Marble, MN. Access can be obtained via North Twin Lake through the channel on the north side. The 2001 lake management plan indicated largemouth bass and northern pike were primary species for management while black crappie were secondary species. In 2008, the black crappie gill-net catch rate was 2.8/net while the trap-net catch rate was 0.3/net. The gill-net catch was above average while the trap-net catch was below average. The catches for both gears were the lowest ever recorded for the lake. Fish sampled in gill nets ranged from 5.3 to 10.4 inches and averaged 6.9 inches while trap-net fish had a similar size distribution. Five year-classes from age 2 to age 7 were sampled. Two and three year old fish were the most prevalent, representing 74% of the sample. Growth was slower than that reported other class 31 lakes. Bluegill trap-net catch rates were 5.1 fish/net. The catch in 2008 was near the lake class 1st quartile value of 6.1/net and towards the lower end of previous catches. The fish ranged from 3.1 to 7.6 inches and averaged 5.2 inches. Six year-classes were identified ranging from 3 to 8 years old. The 2005 year class represented 43% of the sample. Growth was slow compared to the average for class 31 lakes. Largemouth bass were sampled with spring night electrofishing in 2008. Electrofishing catch rates increased substantially from 1999 to 2008. In 2008, 99 largemouth bass were captured for a catch rate of 99.0 fish/hr compared to just 9.0 fish/hr in 1999. The fish ranged from 3.2 to 16.8 inches and averaged 9.6 inches. The population appeared to have fairly consistent recruitment for the last six years. Eight year-classes were identified with the 2005 and 2006 year-classes representing 43 and 34% of the sample, respectively. The South Twin bass population appears to be another example of a lake in the area responding well to recent weather patterns. Northern pike gill-net catch rates have trended up in all assessments since 1958 and were the highest on record in 2008. The catch of 15.7 fish/gill net was well above average. The sampled fish ranged from 10.8 and 27.4 inches and averaged 17.6 inches. Seven age-classes were sampled from one to eight years old. Recruitment appears to be consistent and high in recent years. Two and three year old fish represented 33 and 34% of the sample, respectively. Growth was similar to statewide averages for all ages. Although tullibee and white sucker catches were good for this lake class, only three yellow perch were sampled. It appears the combination…
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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