Ram Lake
Cook County, Minnesota - DNR stocking history, depth and survey data
Minnesota · Minnesota Department of Natural Resources (DNR) · DOW 16017400
DNR records show 5 stocking entries at Ram Lake since 2016, most recently rainbow trout fingerlings in 2024 (3,000 fish).
- Ram Lake has 5 DNR stocking records across 5 years (2016-2024): rainbow trout (5).
- The most-stocked species by count is rainbow trout: 16,538 fish on record.
- Maximum depth 40 ft; surface area 68 acres, 28 littoral acres, 2.1 miles of shoreline, per the DNR lake survey.
- Average water clarity (Secchi depth) 18.6 ft.
- Fish species DNR lists here: lake trout, rainbow trout, white sucker.
- 1 public access on the DNR list.
- Most recent DNR fish survey: (targeted survey).
- Cook County, nearest town Grand Marais; DNR lake number (DOW) 16017400.
Stocking history
| Year | Species | Size | Number | Pounds |
|---|---|---|---|---|
| 2024 | Rainbow Trout | fingerlings | 3,000 | 111.1 |
| 2022 | Rainbow Trout | fingerlings | 3,000 | 63.6 |
| 2020 | Rainbow Trout | fingerlings | 4,538 | 109.6 |
| 2018 | Rainbow Trout | fingerlings | 3,000 | 71.9 |
| 2016 | Rainbow Trout | fingerlings | 3,000 | 106.0 |
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 |
|---|---|---|
| CA | USF |
DNR fish survey, 2025
Temperature and dissolved oxygen (DO) measurements were collected from the deepest basin in Ram Lake on August 6th, 2025, to evaluate the quantity and quality of cold, oxygenated water (i.e., oxythermal habitat) available to Lake Trout, the most sensitive coldwater species present in this lake. During the summer, Lake Trout require a layer of oxythermal habitat that contains water temperatures below 8.8 degrees C (47.8 degrees F) and dissolved oxygen concentrations above 3.0 mg/L. Based on the profile from the deepest basin (maximum sampled depth 32.8 feet), the water temperature never decreased below 8.8 degrees C (47.8 degrees F) and the dissolved oxygen concentration decreased to 3.0 mg/L at 27.8 feet at the time of sampling. Therefore, the water column did not contain a layer of water with sufficient temperature and dissolved oxygen for Lake Trout. Further, the temperature at which dissolved oxygen decreased to 3.0 mg/L (i.e., TDO3, a single variable to characterize oxythermal habitat) was 10.5 degrees C (50.9 degrees F). TDO3 values warmer than 8.8 degrees C (47.8 degrees F) indicate that oxythermal conditions were unsuitable for Lake Trout at the time of the survey. Data collected by the Minnesota Department of Natural Resources during the late summer period of maximum oxythermal stress (July 26th to Aug 24th) in 4 years, between 1956-2024, indicate unsuitable oxythermal habitat in all years when surveyed. When inadequate oxythermal habitat is available, Lake Trout 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. Regulations, slot limits and special rules are on the DNR page linked above, not here.
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