Cantlin Lake
Sherburne County, MinnesotaLimited DataMesotrophic
On the LakeGrade scale Cantlin Lake grades a B, with clarity at 10.0 ft and phosphorus readings still being added placing it above the Minnesota median. Sub-grades cluster within a single letter of each other, which usually means the lake is in stable trophic balance rather than fighting one specific stressor.
A TSI near 44 places Cantlin Lake in the mesotrophic band — moderate productivity, with seasonal swings between clearer spring water and richer late-summer conditions. The lake's maximum depth is not yet documented in state morphometric records — context for its physical structure remains limited. The lake's surface area is not consistently recorded across state datasets — physical context remains partial. Among the 24 graded lakes in Sherburne County, Cantlin Lake sits at rank 11, above the county median.
Cantlin Lake has no invasive species recorded in Minnesota state databases as of 2021, though prevention practices still apply at all access points. Bass fishing is part of the appeal: the species list runs to 8, anchored by largemouth and/or smallmouth bass. The lake lacks a documented public access point, so visitor use is limited. Ice-out has been logged at Cantlin Lake more than two dozen times, putting the median around Apr 6 — a useful baseline for tracking climate trends. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2021-07-09. Grade methodology: LakeGrade methodology.
Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Good clarity, visible to about 10 ft. Trophic State Index: 44.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 10 ft | B |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 44 | Mesotrophic |
Moderate nutrients, good water quality
Fish Species
Click a species to see all Minnesota and Wisconsin lakes where it is found.
→ Best fishing times for Cantlin Lake (14-day solunar calendar)
→ Is it safe to eat fish from Cantlin Lake? (mercury & PFAS guide)
→ Cantlin Lake fishing regulations (limits, seasons, special rules)
Water Quality Trend: ↑ Improving
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.15 m/yr | 2 |
Ice Season
Historical ice data from Minnesota DNR (47 observations).
Estimated open water season: 227 days
| Earliest | Latest | |
|---|---|---|
| Ice-Out | 2000-03-09 (2000) | 1996-04-23 (1996) |
| Ice-In | 1991-11-03 (1991) | 1998-12-20 (1998) |
Most recent ice-out: 2008-04-21
Location
County Ranking
Ranked #11 of 24 lakes in Sherburne County
Nearby Lakes in Sherburne County
More Minnesota Lake Rankings
State Parks Near Cantlin Lake
Other Grade B Lakes in Minnesota
Mesotrophic Lakes in Minnesota
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Ice data from Minnesota DNR Climate
Most recent sample: 2021-07-09
Monitoring stations: 1