Aaron Lake

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

Minnesota · Minnesota Department of Natural Resources (DNR) · DOW 21024200

DNR records show 20 stocking entries at Aaron Lake since 2016, most recently walleye adults in 2025 (424 fish).

• Aaron Lake has 20 DNR stocking records across 9 years (2016-2025): walleye (20).
• The most-stocked species by count is walleye: 54,522 fish on record.
• Maximum depth 16 ft, mean depth 9 ft; surface area 610 acres, 467 littoral acres, 4.9 miles of shoreline, per the DNR lake survey.
• Average water clarity (Secchi depth) 7.6 ft.
• Fish species DNR lists here: black bullhead, black crappie, bluegill, brown bullhead, common carp, hybrid sunfish, largemouth bass, northern pike, pumpkinseed, rock bass, smallmouth bass, walleye, and 3 more.
• 1 public access on the DNR list.
• Most recent DNR fish survey: May 14, 2024 (targeted survey).
• Douglas County, nearest town Millerville; DNR lake number (DOW) 21024200.

Depth map

Bathymetric contours from the Minnesota DNR lake survey (get source); depths in feet. Simplified for the web; not for navigation.

Stocking history

¹ fish purchased and stocked by private citizens and sporting groups.

Public accesses

DNR fish survey, 2024

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.

A targeted survey was conducted May 14-15 on Aaron Lake to assess the Bluegill and Black Crappie populations. Bluegill were abundant (90.5/trap net). Lengths ranged from 3.4 to 8.9 inches, with an average of 6.8 inches. Growth is below average for the area, but Bluegill were recorded out to age 12. Black Crappie catch rates (3.6/trap net) were moderate. Size structure is poor, which is likely the result of slow growth and relatively young fish (predominately age 4). Lengths ranged from 5.5 to 10.5 inches; average length was 8.7 inches. Anglers are encouraged to practice selective harvest to help sustain the quality of the fishery. Selective harvest encourages the release of larger fish while promoting harvest of more abundant smaller fish. Releasing medium to large fish can help restore and maintain fish community balance, as well as increase opportunities to catch large fish in the future.

Minnesota DNR survey narrative, May 14, 2024.

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