Minnesota DNR fisheries surveys · latest July 12, 1990
Lost Lake FishingAWater-quality grade A
Minnesota DNR surveys at Lost Lake average 7.00 northern pike per unit of sampling effort (CPUE) across 1 survey. The most recent is a Standard Survey dated July 12, 1990. In Cass County, Minnesota, Lost Lake carries an overall water-quality grade of A. Water clarity averages 14.8 feet of visibility. 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 Lost Lake
No stocking record for Lost 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 Lost Lake average 7.00 northern pike per unit of sampling effort (CPUE) across 1 survey. The most recent is a Standard Survey dated July 12, 1990.
A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality grades Lost Lake A from EPA Water Quality Portal chemistry, and the water-quality trend over 6 years of monitoring is stable. 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: 1990-07-12 (Standard Survey).
Top Species by Catch Rate
| Species | Avg catch rate (CPUE) | Avg Weight |
|---|---|---|
| Bluegill | 12.63 | 0.2 lb |
| Black Bullhead | 9.50 | 0.6 lb |
| Northern Pike | 7.00 | 1.05 lb |
| Yellow Bass | 4.13 | 0.35 lb |
| Rock Bass | 2.25 | 0.33 lb |
| Pumpkinseed | 1.50 | 0.15 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 1990-07-12 survey
The northern pike gillnet catch of 13.5 is high. Most of the fish sampled were less than 20 inches long, but fish 30 inches long were collected. The northern pike growth rate is near the statewide average.The bluegill trapnet catch was 23.8. The sample collected exhibited fair quality indices - PSD=54; RSD-7=19;…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Lost Lake. 1 report on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — LostFisheries Lake Survey · MN DNR LakeFinder
Common questions
What fish are in Lost Lake?
Minnesota DNR surveys at Lost Lake average 7.00 northern pike per unit of sampling effort (CPUE) across 1 survey. The most recent is a Standard Survey dated July 12, 1990. Those are survey results, not a catch report: a net set on one date measures what was in that net.
When was Lost Lake last surveyed?
The most recent fisheries survey on file for Lost Lake is dated July 12, 1990. 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 Lost Lake stocked?
No stocking record for Lost 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 Lost Lake fishes?
A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality grades Lost Lake A from EPA Water Quality Portal chemistry, and the water-quality trend over 6 years of monitoring is stable. 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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