Minnesota DNR fisheries surveys · latest June 12, 2025
Blanche Lake FishingAWater-quality grade A
Minnesota DNR surveys at Blanche Lake average 8.98 largemouth bass per unit of sampling effort (CPUE) across 7 surveys. The most recent is a Targeted Survey dated June 12, 2025. Length samples in the latest survey that recorded them ran 6–15 inches. In Otter Tail County, Minnesota, Blanche Lake carries an overall water-quality grade of A. Water clarity averages 12.5 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 Blanche Lake
4 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 Blanche 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 Blanche 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 Blanche Lake average 8.98 largemouth bass per unit of sampling effort (CPUE) across 7 surveys. The most recent is a Targeted Survey dated June 12, 2025. Length samples in the latest survey that recorded them ran 6–15 inches.
A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality grades Blanche Lake A from EPA Water Quality Portal chemistry, and the water-quality trend over 6 years of monitoring is declining. Catch rate is not a swim clearance and is not a weekly bite report.
DNR Fisheries Survey Summary
7 surveys on file from MN DNR Fisheries. Most recent: 2025-06-12 (Targeted Survey).
Top Species by Catch Rate
| Species | Avg catch rate (CPUE) | Avg Weight |
|---|---|---|
| Bluegill | 29.05 | 0.16 lb |
| Largemouth Bass | 8.98 | 0.63 lb |
| Pumpkinseed | 6.20 | 0.25 lb |
| Northern Pike | 3.63 | 0.82 lb |
| Yellow Bass | 2.89 | 0.76 lb |
| Walleye | 2.23 | 1.31 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.
Bluegill
Largemouth Bass
Pumpkinseed
Northern Pike
From the 2025-06-12 survey
Blanche Lake is a 1,228-acre mesotrophic (moderately fertile) lake located in central Otter Tail County approximately four miles northeast of Battle Lake, MN. An inlet from Annie Battle Lake is located on the southwest shoreline and an outlet to Otter Tail Lake is located on the north shoreline. The immediate…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Blanche Lake. 4 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — BlancheFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Blanche (1176)Aquatic Plant Report · MN DNR LakeFinder
- —Fish Stocking History — BlancheFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — BlanchePublic Water Access Sites · MN DNR LakeFinder
Common questions
What fish are in Blanche Lake?
Minnesota DNR surveys at Blanche Lake average 8.98 largemouth bass per unit of sampling effort (CPUE) across 7 surveys. The most recent is a Targeted Survey dated June 12, 2025. Length samples in the latest survey that recorded them ran 6–15 inches. Minnesota DNR lists 4 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 Blanche Lake last surveyed?
The most recent fisheries survey on file for Blanche Lake is dated June 12, 2025. 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 Blanche Lake stocked?
Minnesota DNR publishes a stocking history for Blanche 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 Blanche Lake fishes?
A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality grades Blanche Lake A from EPA Water Quality Portal chemistry, and the water-quality trend over 6 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 Blanche Lake
Top-rated places to stay near Blanche Lake
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