Chase Lake

Itasca County, Minnesota - DNR stocking history, depth and survey data

Minnesota · Minnesota Department of Natural Resources (DNR) · DOW 31074900

Chase Lake has no DNR stocking rows in LakeFinder; this page carries its DNR depth, access and survey data.

• Chase Lake shows no stocking records in Minnesota DNR LakeFinder as of September 2, 2026.
• Maximum depth 95 ft; surface area 211 acres, 68 littoral acres, 2.9 miles of shoreline, per the DNR lake survey.
• Average water clarity (Secchi depth) 23.0 ft.
• Fish species DNR lists here: black crappie, bluegill, hybrid sunfish, largemouth bass, northern pike, pumpkinseed, tullibee (cisco), walleye, white sucker, yellow perch.
• 1 public access on the DNR list.
• Most recent DNR fish survey: August 1, 2023 (targeted survey).
• Itasca County, nearest town Deer River; DNR lake number (DOW) 31074900.

Depth map

Bathymetric contours from the Minnesota DNR lake survey mapped 7/14/1955 (orig map); depths in feet. Simplified for the web; not for navigation.

Public accesses

DNR fish survey, 2023

A temperature-dissolved oxygen profile was collected in the deepest basin on Chase Lake on August 1, 2023, to evaluate the amount of cold, oxygenated water (i.e., oxythermal habitat) available to Cisco, also known as Tullibee. Based on the profile, the top of the thermocline (i.e., the location in the water column with the sharpest transition from warm to cold water) occurred at approximately 23 feet. Dissolved oxygen decreased to below 3.0 mg/L at 51.9 feet, which was below the thermocline, at the time of sampling. The temperature at which dissolved oxygen decreased to below 3.0 mg/L (i.e., TDO3, a single variable to characterize oxythermal habitat) was 5.4°C (41.7°F). TDO3 values cooler than 21.5°C indicate that oxythermal conditions are favorable for Cisco. Dissolved oxygen concentrations below the thermocline indicate that suitable oxythermal habitat for Cisco was available across a range of depths at the time of sampling during the summer of 2023. Data collected in 1976-2016 further indicate suitable oxythermal habitat across years, with the least favorable conditions recorded in 1981. When inadequate oxythermal habitat is available, Cisco are squeezed into unfavorable, warmer water conditions and therefore experience higher levels of stress.

Minnesota DNR survey narrative, August 1, 2023.

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