Minnesota DNR fisheries surveys · latest September 4, 2025
Species recorded at Crystal Lake
13 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 Crystal 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 Crystal Lake. Minnesota DNR lists the public access sites, including ramp type and parking, in the documents below.
Survey results in full
Minnesota DNR's Targeted Survey on August 7, 2023 caught 0.22 walleye per trap net at Crystal Lake.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Crystal Lake’s water-quality measurements separately, 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
14 surveys on file from MN DNR Fisheries. Most recent: 2025-09-04 (Targeted Survey).
14 surveys on file · most recent 2025-09-04 (Targeted Survey)
| Species | Catch rate (CPUE) | Size | Avg weight |
|---|---|---|---|
| Bluegill | 81.39 | 2–7 in 2023-08-07 | 0.11 lb |
| Black Bullhead | 18.25 | 14 in 2023-08-07 | 0.54 lb |
| Largemouth Bass | 16.34 | 5–16 in 2023-08-07 | 0.88 lb |
| Hybrid Sunfish | 10.11 | 3–10 in 2023-08-07 | 0.18 lb |
| Green Sunfish | 9.15 | 4 in 2023-07-11 | 0.1 lb |
CPUE = catch per unit effort, fish caught per net per set in a standardised survey. It measures abundance, not size, and 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
Black Bullhead
Largemouth Bass
Hybrid Sunfish
From the 2025-09-04 survey
Minnesota DNR Fisheries IBI program staff conducted an assessment of lakeshore habitat on Crystal Lake on September 4th, 2025, following the Score the Shore survey protocols. The assessment consisted of 49 survey sites evenly spaced 70 meters around the lake. Assessments were made in three habitat zones: Shoreline…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Crystal Lake. 3 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — CrystalFisheries Lake Survey · MN DNR LakeFinder
- —Fish Stocking History — CrystalFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — CrystalPublic Water Access Sites · MN DNR LakeFinder
Common questions
What fish are in Crystal Lake?
Minnesota DNR's Targeted Survey on August 7, 2023 caught 0.22 walleye per trap net at Crystal Lake. Minnesota DNR lists 13 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 Crystal Lake last surveyed?
The most recent fisheries survey on file for Crystal Lake is dated September 4, 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 Crystal Lake stocked?
Minnesota DNR publishes a stocking history for Crystal 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.
Do the water-quality readings tell me how Crystal Lake fishes?
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Crystal Lake’s water-quality measurements separately, 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
Water-quality readings are 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 with clear, low-nutrient water can still carry a meal limit on larger predator fish.
Where to stay near Crystal Lake
Top-rated places to stay near Crystal Lake
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