West Pike Lake
Cook County, MinnesotaLimited DataOligotrophic
West Pike Lake sits at the top of the Minnesota PCA grading rubric with an A, a mark reached by the cleanest lakes in Minnesota.
The lake's low TSI puts it in oligotrophic territory — the cleanest of the four trophic classes, but also the most vulnerable to nutrient-driven shifts. West Pike Lake is unusually deep for Minnesota at 120 ft, which buffers the lake against summer warming and helps the deep water stay oxygenated. West Pike Lake covers 788 acres alongside 10.0 miles of shoreline — a mid-sized water that supports a working fishery without being so large that conditions diverge between basins. Within Cook County's 128 graded waters, West Pike Lake sits at rank 28, near the top of the local distribution.
West Pike Lake has no invasive species recorded in Minnesota state databases as of 2024, though prevention practices still apply at all access points. The fishery is bass-led, with 5 documented species across the lake's records. No formal public access is documented at West Pike Lake — most use is by shoreline residents and their guests. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2024-08-21. Grade methodology: LakeGrade methodology.
Track West Pike Lake
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
Crystal clear, you can see 19 ft down. Trophic State Index: 35.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 19 ft | A |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 35 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 120 ft |
| Surface Area | 788.2 acres |
| Shoreline Length | 10 mi |
| Littoral Zone | 28% |
| Public Access | No |
Fish Species
Click a species to see all Minnesota and Wisconsin lakes where it is found.
→ Best fishing times for West Pike Lake (14-day solunar calendar)
→ Is it safe to eat fish from West Pike Lake? (mercury & PFAS guide)
→ West Pike Lake fishing regulations (limits, seasons, special rules)
Location
County Ranking
Ranked #28 of 128 lakes in Cook County
Nearby Lakes in Cook County
More Minnesota Lake Rankings
State Parks Near West Pike Lake
Other Grade A Lakes in Minnesota
Oligotrophic Lakes in Minnesota
Compare West Pike Lake With Nearby Lakes
DNR Fisheries Survey Summary
5 surveys on file from MN DNR Fisheries. Most recent: 2025-08-12 (Targeted Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| White Sucker | 4.12 | 2.41 lb |
| BUB | 3.18 | 1.42 lb |
| Lake Trout | 2.24 | 3.75 lb |
| Smallmouth Bass | 1.37 | 1.61 lb |
| Tullibee (Cisco) | 0.54 | 0.11 lb |
CPUE = catch per unit effort, averaged across surveys (excludes juvenile shoreline seining). Higher CPUE = more abundant in standardized sampling.
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.
White Sucker
BUB
Lake Trout
Smallmouth Bass
From the 2025-08-12 survey
Temperature and dissolved oxygen measurements were collected from the deepest basin in West Pike Lake on August 11th, 2025. This was done to evaluate the quantity and quality of cold, oxygenated water (i.e., oxythermal habitat) available to Lake Trout, the most sensitive coldwater species present in this lake (Cisco,…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for West Pike Lake. 1 report on file.
- —Fisheries Lake Survey — West PikeFisheries Lake Survey · MN DNR LakeFinder
EPA Impairment Status
West Pike Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MN16-0086-00 · Official waterbody report
Data Sources
Water quality data from the EPA Water Quality Portal
Impairment status from EPA ATTAINS 303(d) database
Grading methodology based on Metropolitan Council standards
Lake details from Minnesota DNR LakeFinder
Most recent sample: 2024-08-21
Monitoring stations: 1