Judson Mine Pit
St. Louis County, Minnesota - DNR stocking history, depth and survey data
Minnesota · Minnesota Department of Natural Resources (DNR) · DOW 69129500
DNR records show 4 stocking entries at Judson Mine Pit since 2016, most recently rainbow trout yearlings in 2018 (600 fish).
- Judson Mine Pit has 4 DNR stocking records across 3 years (2016-2018): rainbow trout (4).
- The most-stocked species by count is rainbow trout: 3,000 fish on record.
- Maximum depth 64 ft; surface area 20 acres, 3 littoral acres, 0.8 miles of shoreline, per the DNR lake survey.
- Average water clarity (Secchi depth) 33.0 ft.
- Fish species DNR lists here: green sunfish, rainbow smelt, rainbow trout, white sucker.
- 2 public accesses on the DNR list.
- Most recent DNR fish survey: (targeted survey).
- St. Louis County, nearest town Buhl; DNR lake number (DOW) 69129500.
Stocking history
| Year | Species | Size | Number | Pounds |
|---|---|---|---|---|
| 2018 | Rainbow Trout1 | yearlings | 600 | 200.0 |
| 2017 | Rainbow Trout1 | yearlings | 600 | 200.0 |
| 2017 | Rainbow Trout2 | yearlings | 600 | 200.0 |
| 2016 | Rainbow Trout1 | yearlings | 1,200 | 400.0 |
1 fish purchased and stocked by private citizens and sporting groups. 2 fish purchased by the DNR for stocking.
Public accesses
| Type | Owner | Where |
|---|---|---|
| CA | city | |
| CA | city |
DNR fish survey, 2018
| Species | Gear | Catch per net | Total catch | Avg lb |
|---|---|---|---|---|
| Green sunfish | 1/2-in trap nets | 76.50 | 306 | 0.03 |
| White sucker | 1/2-in trap nets | 0.25 | 1 | 2.00 |
| RBS | Small-mesh gill nets | 58.00 | 58 | 0.02 |
| Green sunfish | Small-mesh gill nets | 1.00 | 1 | 0.02 |
| Green sunfish | Minnow traps | 26.50 | 53 | 0.00 |
| White sucker | Standard gill nets | 4.75 | 19 | 2.53 |
| RBS | Standard gill nets | 1.00 | 4 | 0.04 |
| Green sunfish | Standard gill nets | 0.75 | 3 | 0.08 |
| Rainbow trout | Standard gill nets | 0.25 | 1 | 3.62 |
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.
Judson Mine Pit is a small designated stream trout lake, primarily managed for Rainbow Trout. Iron Range Resource and Rehabilitation Board has contracted with a private vendor to stock yearling Rainbow Trout semiannually since 1997. The 2014 management plan goal was to have a gill net catch rate for Rainbow Trout to exceed 1.5/net with 75% greater than 12 inches and at least two year classes present. Brown Trout were listed as a secondary management species despite never being stocked. Rainbow Trout has been the only species stocked since the last survey, including the spring. Despite the stocking effort, only one trout was caught, similar to the previous survey. The absence of trout indicates poor survival. Competition is likely limiting trout abundance and will likely impact future management. Rainbow Smelt were first recorded during the previous survey. One small mesh gill net, targeting smelt, caught 58. Down from the previous survey that caught 183. Lengths ranged from 4.4 to 7.3 inches with an average length of 5.2 inches, suggesting multiple ages present. Trap net catches for Green Sunfish have steadily increased. The catch was 76.5/trap net, over double the previous survey (30.8/net). Lengths ranged from 2.4 to 7.8 inches. Green Sunfish were caught in all four gear types; standard gill net, small mesh gill net, near-shore trap net and wire-mesh minnow trap. White Sucker was the only other species captured.
Minnesota DNR survey narrative, .
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