Rog Lake
Cook County, Minnesota - DNR stocking history, depth and survey data
Minnesota · Minnesota Department of Natural Resources (DNR) · DOW 16076500
DNR records show 1 stocking entry at Rog Lake since 2017, most recently brook trout fingerlings in 2017 (4,500 fish).
- Rog Lake has 1 DNR stocking record across 1 year (2017-2017): brook trout (1).
- The most-stocked species by count is brook trout: 4,500 fish on record.
- Maximum depth 40 ft, mean depth 21 ft; surface area 54 acres, 21 littoral acres, 1.6 miles of shoreline, per the DNR lake survey.
- Average water clarity (Secchi depth) 13.8 ft.
- Fish species DNR lists here: brook trout, burbot, smallmouth bass, white sucker.
- 1 public access on the DNR list.
- Most recent DNR fish survey: (standard survey).
- Cook County, nearest town Tofte; DNR lake number (DOW) 16076500.
Stocking history
| Year | Species | Size | Number | Pounds |
|---|---|---|---|---|
| 2017 | Brook Trout8 | fingerlings | 4,500 | 79.0 |
8 fish cooperatively purchased, raised, and/or stocked by U.S. Fish and Wildlife Service.
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 |
|---|---|---|
| PO | Minnesota DNR | 20-rod portage trail from Sea Gull Lake across State land. Lake is entirely inside the BWCAW. |
DNR fish survey, 2013
| Species | Gear | Catch per net | Total catch | Avg lb |
|---|---|---|---|---|
| White sucker | Standard gill nets | 3.25 | 13 | 1.42 |
| Smallmouth bass | Standard gill nets | 3.00 | 12 | 1.29 |
| Brook trout | Standard gill nets | 0.75 | 3 | 3.78 |
| Burbot | Standard gill nets | 0.50 | 2 | 0.19 |
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.
This was the first of two assessments scheduled in the 2006 lake management plan to determine whether a change in stocking strategy begun in 2009 resulted in improved brook trout abundance. It was hoped that stocking higher numbers of fingerlings would overcome losses to predation from smallmouth bass and possibly walleye in this lake. The brook trout catch in this assessment was the lowest seen in this lake since it was first stocked with the species. The gill net catch was well short of the normal range (1.50-14.00 fish/net) for fall assessments of stream trout lakes in this area, and fell well short of the long range goal for the species (4.0 fish/net) established in the 2006 management plan. The mean weight for brook trout collected in 2013 was the highest seen to date in this lake, and was well above the normal range (0.50-1.18 lb/fish) for lakes in this area. The low catch, and the high mean weight, were the result of very limited (or no) survival of the 2011 stocking. All fish taken were four-year-old fish from the 2009 fingerling stocking. Both brook trout collected in this assessment had exhibited good growth; they reached an average length of 16.1 inches by the end of their fourth year. The presence of any four-year-old fish has been unusual in stream trout lakes in this area, and probably indicated good long term survival of fish that survive the immediate post-stocking period. Poor survival of brook trout stocked in 2011 may have been caused by cannibalism from the few larger trout present, or by the presence of smallmouth bass in significant numbers. Smallmouth bass were first seen in this lake in 1991, and brook trout catches have dropped in every assessment done since that time. Five year classes contributed to the 2013 smallmouth bass catch, and many of the fish present would have been large enough to have preyed on newly stocked brook trout. Growth of older smallmouth bass collected in 2013 had been about average for the area, with seven-year-old fish reaching an average length of 14.0 inches by the end of their seventh year. White sucker and burbot were present in average numbers for a lake of this class. Both may compete with brook trout for forage, with white sucker perhaps a more important competitor than burbot. Walleye have been found in this lake in the past, and may still have been present in low numbers in 2013. Walleye would compete with trout for forage, and could prey directly on stocked fingerlings. Although results of this assessment suggest the current stocking strategy has failed, another assessment should be done as…
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. Regulations, slot limits and special rules are on the DNR page linked above, not here.
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