How Clean Is Knife Lake?
Knife Lake is algae-prone, with a higher bloom risk in warm months. Its nutrient and algae readings come from EPA monitoring data. Water clarity (Secchi depth): 2 ft. Phosphorus: 161.5 µg/L. Chlorophyll-a (algae): 97.2 µg/L. Trophic State Index: 73.
Cleanliness Snapshot
| Metric | Knife Lake | Minnesota avg |
|---|---|---|
| Water Clarity (Secchi) | 2 ft | — |
| Phosphorus | 161.5 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 97.2 µg/L | <10 = clean |
| Trophic State Index | 73 | <50 = clean |
How does Knife Lake compare?
Knife Lake's readings run above the Minnesota state average. It ranks #2 of 2 lakes in Kanabec County on nutrient and algae readings. Multi-year monitoring data shows water quality is declining based on 6 years of records.
Stays via Stay22
Where to stay near Knife Lake
Compare cabins, hotels, and vacation rentals near Knife Lake in Kanabec County, Minnesota. Live availability and prices for your nights. Switch the map to Satellite to see how close each stay is to the water.
Top-rated places to stay near Knife Lake
Prices for Oct 30–Nov 1, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a trip to Knife Lake?
Get lake water-quality updates plus the best cabin & lodging deals near Knife Lake — straight to your inbox. No spam, unsubscribe anytime.
Watch Knife Lake water quality
Get an email when the clarity or algae readings change. Unsubscribe anytime.