Spring Lake (St. Louis County)
St. Louis County, Minnesota - DNR stocking history, depth and survey data
Minnesota · Minnesota Department of Natural Resources (DNR) · DOW 69076100
DNR records show 4 stocking entries at Spring Lake (St. Louis County) since 2016, most recently lake trout yearlings in 2019 (1,950 fish).
- Spring Lake (St. Louis County) has 4 DNR stocking records across 4 years (2016-2019): lake trout (4).
- The most-stocked species by count is lake trout: 7,478 fish on record.
- Maximum depth 60 ft, mean depth 33 ft; surface area 219 acres, 49 littoral acres, 4.5 miles of shoreline, per the DNR lake survey.
- Average water clarity (Secchi depth) 13.7 ft.
- Fish species DNR lists here: cisco species, green sunfish, lake whitefish, largemouth bass, northern pike, rock bass, smallmouth bass, tullibee (cisco), white sucker, yellow perch.
- 1 public access on the DNR list.
- Most recent DNR fish survey: (targeted survey).
- St. Louis County, nearest town Crane Lake; DNR lake number (DOW) 69076100.
Depth map
Bathymetric contours from the Minnesota DNR lake survey mapped 8/26/1969 (orig map); depths in feet. Simplified for the web; not for navigation.
Stocking history
| Year | Species | Size | Number | Pounds |
|---|---|---|---|---|
| 2019 | Lake Trout | yearlings | 1,950 | 190.2 |
| 2018 | Lake Trout | yearlings | 2,138 | 205.6 |
| 2017 | Lake Trout | yearlings | 2,390 | 213.2 |
| 2016 | Lake Trout | yearlings | 1,000 | 96.4 |
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 |
|---|---|---|
| O | UKN | - Access via shallow outlet channel from Johnson Lake. |
DNR fish survey, 2024
Temperature and dissolved oxygen measurements were collected in the deepest basin in Spring Lake on August 1, 2024 to evaluate the quantity and quality of cold, oxygenated water (i.e., oxythermal habitat) available to Lake Whitefish the most sensitive coldwater species present in this lake (Cisco also present). During the summer, Lake Whitefish require a layer of oxythermal habitat that contains water temperatures below 17.2 degrees C (63.0 degrees F) and dissolved oxygen concentrations above 3.0 mg/L. Based on the profile from the deepest basin, the water temperature decreased to below 17.2 degrees C (63.0 degrees F) at 19.7 feet and the dissolved oxygen concentration decreased to 3.0 mg/L at 41.5 feet at the time of sampling. The thickness of this layer of water in the water column was 21.9 feet, indicating that oxythermal habitat was present for Lake Whitefish. Further, the temperature at which dissolved oxygen decreased to 3.0 mg/L (i.e., TDO3, a single variable to characterize oxythermal habitat) was 7.6 degrees C (45.7 degrees F). TDO3 values cooler than 17.2 degrees C (63.0 degrees F) indicate that oxythermal conditions were suitable for Lake Whitefish at the time of the survey. Data collected by the Minnesota Department of Natural Resources during the late summer period of maximum oxythermal stress in 2019, 2016, 2014, and 2009 also indicate suitable oxythermal habitat in all years. When inadequate oxythermal habitat is available, Lake Whitefish are squeezed into unfavorable, warmer water conditions and experience higher levels of stress.
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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