Wolf

Wolf Lake sits about 14 miles north of Nashwauk and covers 188 acres. It's a shallow lake-only about 6 feet at its deepest-with the Prairie River flowing through it and a small dam at the outlet. The water has a dark, bog-stained look, so even though it's shallow, you usually can't see the bottom. There's one public access on the south shore, and shoreline development is limited, so it still feels fairly natural. For anglers, Walleye and Northern Pike are the main management focus, with Black Crappie and Bluegill as secondary species. Walleye numbers are about where you'd expect for a lake like this. Recent netting showed a decent catch rate, about average. Most Walleyes run small to medium, averaging around 15 inches, with fish up to about 20 inches sampled. Several year classes are present, which is a good sign for stability. Growth is close to the state average, but it takes five years for Walleyes here to reach 15 inches. This isn't a lake known for producing high numbers of Walleye, but there are steady fish and natural reproduction appears to be carrying the load. Northern Pike are doing well. Catch rates were higher than average and better than the previous survey. Fish ranged up to nearly 34 inches, and pike over 30 inches show up regularly-which is impressive for such a shallow lake. About a quarter of the sampled fish were longer than the protected slot (22-26 inches), meaning anglers have a real shot at quality fish. Growth is on track with state averages, with pike reaching 21 inches before age five. The lake is meeting its goal of maintaining pike over 30 inches. Black Crappie numbers remain modest but consistent. Catch rates were similar to past surveys and within the normal range for this type of lake. Fish averaged just over 10 inches, with some reaching 13 inches. Several age classes were present, showing decent balance. Growth started slow but caught up to state averages by age four, and crappies typically reach the preferred 10-inch size by age six. Overall, crappies offer some nice fish, just not in high numbers. Bluegills aren't usually abundant in Wolf Lake, but the most recent survey showed an improvement in numbers compared to past years. While the sample size was small, size structure looked good, with fish up to nearly 9 inches. Even so, the lake hasn't quite met its goal of producing bluegills over 9 inches. Growth is slow early on, with fish reaching about 8 inches by age eight. You may not find big numbers, but there are some quality fish if you sort through them. Yellow Perch numbers were the lowest ever recorded in recent surveys but still within the normal range for similar lakes. Most perch were small, averaging under 7 inches. Other species present include Bowfin, Brown Bullhead, Pumpkinseed Sunfish, and White Sucker. In short, Wolf Lake is a shallow, stained-water lake that offers steady pike action, moderate Walleye numbers, decent Black Crappies, and improving Bluegills. It's not a numbers factory, but anglers willing to work for fish-especially Northern Pike-should find worthwhile opportunities.

Wolf Lake is a class 37 lake located 14 miles north of Nashwauk, MN. The Prairie River flows through the lake and it has a small dam at the outlet. The lake has one earthen public access and low shoreline development. The 2001 lake management plan indicates northern pike and walleye as the primary species of management with black crappie and bluegill as secondary species. The 2010 assessment also included additional sampling of near shore fish species in order to calculate an Index of Biotic Integrity (IBI) score. Black crappie were sampled with trap nets at a rate of 2.4 fish/net. The catch was above the 1998 catch rate of 1.2/net and between the lake class first quartile and median values. The sampled fish ranged from 8.4 to 13.1 inches and had a mean length of 11.4 inches. Five year-classes from 4 to 8 years old were identified from scales. Growth was good compared to statewide averages with fish averaging 10.2 inches after five years of growth. Trap-net catch rates for bluegill have been below the lake class first quartile value of 3.1 fish/net in all assessments. The 2010 trap-net catch of 1.8 fish/net equaled the highs observed in 1972 and 1991. Bluegill lengths ranged from 3.9 to 9.3 inches and had a mean length of 8.1 inches. Four age-classes were identified from scales ranging from age 2 to age 6. Growth rates were excellent compared to other class 37 lakes; mean back-calculated length-at-age 5 was 7.5 inches compared to the lake class median of 6.1 inches. In four of the previous five assessments since 1972, northern pike gill-net catch rates have ranged from 1.6 to 2.8 fish/net. The highest catch occurred in 1978 when 10.2 fish/gill net were captured. In 2010, northern pike gill-net catch was 6.5 fish/net which was above the lake class median of 5.0 and management goal of 2.8 fish/net. The sampled fish ranged from 9.3 to 37.1 inches and had a mean length of 21.4 inches. The length distributions resulted in PSD, RSD-P, and RSD-M values of 68, 32, and 16 respectively. Nine year-classes were identified from cliethra and scales ranging from age 1 to age 10. Northern pike averaged 20.2 inches by age 4 which was similar to the statewide average of 20.5. Walleye catch rates have ranged from 1.5 to 4.8 since 1972. In 2010, the catch was the highest on record at 4.8 fish/gill net and exceeded the management goal of 2.4 fish/gill net. The walleye gill-net catch rate exceeded the third quartile value of 4.0 fish/net for class 37 lakes. The sampled fish ranged from 6.8 to 17.3 inches and had a mean length of 10.4 inches. Five year classes from age 1 to 6 were identified from scales, opercles and otoliths. The 2009 year class was the largest having 9 of the 16 aged fish. The lake was last stocked with walleye in 1999 indicating all the sampled walleye resulted from natural reproduction. Growth was similar to statewide averages for all ages. Walleye averaged 13.4 inches at age 4. Yellow perch gill-net catch rates have declined in each assessment since a high of 23.2 fish/net in 1978. In 2010, the catch was the lowest on record at 4.0 fish/net; but still remained above the lake class first quartile value. The sampled fish ranged from 5.3 to 11.3 inches and had a mean length of 8.0 inches. Age and growth information was not collected. Other species observed during the population assessment included golden shiner, pumpkinseed sunfish, and white sucker. Additional species observed during IBI sampling included blackchin shiner, Johnny darter, tadpole madtom, and two unknown species.

Wolf Lake is a small reservior on the Prairie River located in northeast Itasca County. Although only 6 feet deep it supports a population of northern pike, walleye and the panfish species. Walleye were sampled at their highest level in this assessment (3.25/gill net). Although the lake has been stocked in the past with walleye fry most of the fish sampled in this assessment were from natural reproduction. Northern pike are not abundant in Wolf Lake (2.75/gill net) but are of quality size. The average size in this assessment was 4.07 pounds. Bluegill and black crappie were also sampled in this assessment. Although not abundant, they were of quality size. The black crappie ranged in length from 7.2-10.2 inches with a mean length of 8.8 inches. Bluegill ranged in length from 5.7-10.3 inches and had a mean length of 8.1 inches. Growth rates of bluegill were excellent.

Based on Minnesota DNR survey data, anglers target Walleye, Northern Pike, Bluegill, Black Crappie, and Rock Bass in Wolf. See the full species list above for catch rates, size structure, and quality scores.

Minnesota DNR records list public access for Wolf. Check the DNR LakeFinder page for the launch type and directions before you go.

Wolf has a maximum depth of 6 feet, per Minnesota DNR data.

The most recent Minnesota DNR survey data for the main sport fish in Wolf is from 2025.

No invasive species are on record for Wolf in Minnesota DNR data. Always clean, drain, and dry your equipment to help keep it that way.