Minnesota DNR fisheries surveys · latest August 16, 2021
Hay Lake FishingCWater-quality grade C
Minnesota DNR surveys at Hay Lake average 3.73 northern pike per unit of sampling effort (CPUE) across 4 surveys. The most recent is a Standard Survey dated August 16, 2021. Length samples in the latest survey that recorded them ran 13–39 inches. In Carlton County, Minnesota, Hay Lake carries an overall water-quality grade of C. Water clarity averages 6.0 feet of visibility, and there is one public boat landing. The survey figures on this page are Minnesota DNR's own; the water-quality grade comes from EPA Water Quality Portal samples. Neither is a forecast of today's bite.
Species recorded at Hay Lake
10 species on the Minnesota DNR list for this lake. A species on the list has been recorded here; it does not mean it is catchable today or in every part of the lake.
Stocking at Hay Lake
Minnesota DNR publishes a stocking history for this lake — which species went in, how many, and in which years. Read the years: a lake stocked in one year is not necessarily stocked in the next.
Getting on the water
1 public boat landing is recorded on Hay Lake. Minnesota DNR lists the public access sites, including ramp type and parking, in the documents below.
Survey results in full
Minnesota DNR surveys at Hay Lake average 3.73 northern pike per unit of sampling effort (CPUE) across 4 surveys. The most recent is a Standard Survey dated August 16, 2021. Length samples in the latest survey that recorded them ran 13–39 inches.
A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality grades Hay Lake C from EPA Water Quality Portal chemistry, and the water-quality trend over 2 years of monitoring is declining. Catch rate is not a swim clearance and is not a weekly bite report.
DNR Fisheries Survey Summary
4 surveys on file from MN DNR Fisheries. Most recent: 2021-08-16 (Standard Survey).
Top Species by Catch Rate
| Species | Avg catch rate (CPUE) | Avg Weight |
|---|---|---|
| Yellow Perch | 11.01 | 0.19 lb |
| Brown Bullhead | 9.86 | 1.17 lb |
| Black Bullhead | 8.95 | 0.98 lb |
| Northern Pike | 3.73 | 1.92 lb |
| White Sucker | 2.51 | 4.16 lb |
| Bluegill | 1.74 | 0.29 lb |
CPUE = catch per unit effort, averaged across surveys (excludes juvenile shoreline seining). Higher CPUE means more abundant in standardized sampling. This is not a weekly bite report.
Length Distributions
Number of fish caught at each inch class in the most recent survey that recorded lengths. Red dashed line marks an approximate trophy threshold for that species.
Yellow Perch
Brown Bullhead
Black Bullhead
Northern Pike
From the 2021-08-16 survey
Hay Lake is a 215 acre lake with 214 acres (99.5%) of littoral area and a maximum depth of 16 feet. The lake is located southwest of Wrenshall, MN off of County Road 4. It has a county-owned earthen access located at the southern end of the lake. The current fisheries management plan for Hay directs Walleye fry…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Hay Lake. 4 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — HayFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Hay (0259)Aquatic Plant Report · MN DNR LakeFinder
- —Fish Stocking History — HayFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — HayPublic Water Access Sites · MN DNR LakeFinder
Common questions
What fish are in Hay Lake?
Minnesota DNR surveys at Hay Lake average 3.73 northern pike per unit of sampling effort (CPUE) across 4 surveys. The most recent is a Standard Survey dated August 16, 2021. Length samples in the latest survey that recorded them ran 13–39 inches. Minnesota DNR lists 10 species for the lake in total. Those are survey results, not a catch report: a net set on one date measures what was in that net.
When was Hay Lake last surveyed?
The most recent fisheries survey on file for Hay Lake is dated August 16, 2021. Survey intervals vary by lake and by species; a gap of several years between surveys is normal and does not mean the record is missing.
Is Hay Lake stocked?
Minnesota DNR publishes a stocking history for Hay Lake. It records which species were released, in what numbers and in which years — the source documents are linked further down this page. A lake can be stocked in some years and not others, so read the years rather than assuming an annual release.
Does the water-quality grade tell me how Hay Lake fishes?
A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality grades Hay Lake C from EPA Water Quality Portal chemistry, and the water-quality trend over 2 years of monitoring is declining. Catch rate is not a swim clearance and is not a weekly bite report.
Before you eat what you catch
A water-quality grade is not a consumption advisory. Mercury and PCB advice for Minnesota waters comes from MDH, and it is issued per species and per size class — a lake can grade well and still carry a meal limit on larger predator fish.
Where to stay near Hay Lake
Top-rated places to stay near Hay Lake
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