Minnesota DNR fisheries surveys · latest August 11, 1971
Spring Lake FishingNRNot rated for water quality
Minnesota DNR surveys at Spring Lake average 1.55 northern pike per unit of sampling effort (CPUE) across 1 survey. The most recent is a Standard Survey dated August 11, 1971. In Hubbard County, Minnesota, Spring Lake has no letter grade — no water-quality sampling on record for this lake. 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.
Stocking at Spring Lake
No stocking record for Spring Lake appears in the Minnesota DNR material on file. That is an absence in the published record, not a confirmation that the lake is unstocked — some waters are managed as naturally reproducing and never appear in a stocking list at all.
Survey results in full
Minnesota DNR surveys at Spring Lake average 1.55 northern pike per unit of sampling effort (CPUE) across 1 survey. The most recent is a Standard Survey dated August 11, 1971.
A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality does not assign an A–F grade on Spring Lake — official chemistry is on file, not a letter. Catch rate is not a swim clearance and is not a weekly bite report.
DNR Fisheries Survey Summary
1 survey on file from MN DNR Fisheries. Most recent: 1971-08-11 (Standard Survey).
Top Species by Catch Rate
| Species | Avg catch rate (CPUE) | Avg Weight |
|---|---|---|
| Black Bullhead | 10.71 | 0.13 lb |
| Yellow Perch | 10.71 | 0.3 lb |
| Black Crappie | 3.67 | 0.94 lb |
| Northern Pike | 1.55 | 1.65 lb |
| White Sucker | 1.35 | 1.72 lb |
| Walleye | 0.20 | 4.2 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.
From the 1971-08-11 survey
The lake had a complete winter kill in 1956. The lake is fished primarily for northern pike with good sizes and numbers reported. The lake is used for dark house spearing in winter. Besides northern pike, the lake also used to provide good walleye catches but none in recent years.The lake provides an excellent…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Spring Lake. 1 report on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — SwampFisheries Lake Survey · MN DNR LakeFinder
Common questions
What fish are in Spring Lake?
Minnesota DNR surveys at Spring Lake average 1.55 northern pike per unit of sampling effort (CPUE) across 1 survey. The most recent is a Standard Survey dated August 11, 1971. Those are survey results, not a catch report: a net set on one date measures what was in that net.
When was Spring Lake last surveyed?
The most recent fisheries survey on file for Spring Lake is dated August 11, 1971. 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 Spring Lake stocked?
No stocking record for Spring Lake appears in the Minnesota DNR material on file. That is not the same as a confirmed unstocked lake: it means no stocking document was published for it in the records this page draws on.
Does the water-quality grade tell me how Spring Lake fishes?
A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality does not assign an A–F grade on Spring Lake — official chemistry is on file, not a letter. 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.
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