Platte Lake

Crow Wing County, Minnesota - DNR stocking history, depth and survey data

Minnesota · Minnesota Department of Natural Resources (DNR) · DOW 18008800

DNR records show 5 stocking entries at Platte Lake since 2017, most recently walleye fry in 2025 (800,000 fish).

• Platte Lake has 5 DNR stocking records across 5 years (2017-2025): walleye (5).
• The most-stocked species by count is walleye: 3,421,854 fish on record.
• Maximum depth 23 ft, mean depth 8 ft; surface area 1,663 acres, 1,616 littoral acres, 13.1 miles of shoreline, per the DNR lake survey.
• Average water clarity (Secchi depth) 4.6 ft.
• Fish species DNR lists here: black bullhead, black crappie, bluegill, bowfin (dogfish), brown bullhead, common carp, green sunfish, hybrid sunfish, largemouth bass, northern pike, pumpkinseed, rock bass, and 4 more.
• 2 public accesses on the DNR list.
• Most recent DNR fish survey: June 9, 2025 (targeted survey).
• Crow Wing County, nearest town Sullivan; DNR lake number (DOW) 18008800.

Depth map

Bathymetric contours from the Minnesota DNR lake survey mapped 7/12/1994 (orig map); depths in feet. Simplified for the web; not for navigation.

Stocking history

¹ fish purchased and stocked by private citizens and sporting groups. ⁴ fish cooperatively purchased, raised, and/or stocked by Mille Lacs Band of Ojibwe.

Public accesses

DNR fish survey, 2025

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.

Spring trap netting was performed June 9-13 to evaluate Bluegill size structure and the effects of a 10 fish bag limit on sunfish that was implemented in March 2016. Spring trap netting in 2025 caught 345 Bluegill, all were measured except three fish. In previous years, sample size ranged from 56 to 305 fish caught, the lowest catch (n=56) occurred in 2023 and was most likely due to the 2022-2023 winterkill event. In 2025, size ranging from 3.0 to 9.4 inches with a mean length of 5.2 inches. The rapid increase in sample size could be contributed to the rapid rebound from the winterkill in 2023 and/or the 10 fish bag limit that was implemented. There were several sizes of Bluegill present including spawning size adults. In 2025 spring trap nets, Black Crappie catches can vary with sampling conditions and may not reflect actual changes. The catches in previous years ranged from 27 to 54 fish, with 27 fish caught in 2023. In 2025, there were 108 crappies caught ranging from 3.8 to 12.2 inches and a mean length of 7.9 inches. Crappies are not as sensitive to the winterkill events and less impacted than Bluegill. Black Crappies most likely increased in size structure due to less interspecific competition. No otoliths were taken in 2025, but in 2023 otoliths showed that crappie growth was slow compared to most area lakes with Age 5 fish averaged less than 9 inches. Northern Pike and Walleye were also observed in 2025 Spring trap nets. Thirty-nine Northern Pike ranging from 12.0 to 29.2 inches with a mean length of 18.8 inches were captured. There were also 7 Walleye caught ranging in size from 13.8 to 26.8 inches and a mean length of 21.9 inches. There were 800,000 Walleye fry stocked in 2025 with most odd years also being stocked. Pumpkinseed and Hybrid Sunfish were captured in high amounts with 291 Pumpkinseed and 127 Hybrid Sunfish. The highest number species caught in the trap nets was Yellow Bullhead at 500 sampled. Other species present were Bowfin, Common Carp, Largemouth Bass, and Yellow Perch.

Minnesota DNR survey narrative, June 9, 2025.

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