Inez_deep Lake is a mesotrophic lake in Missoula County, Montana. Water quality is graded A based on 1 sampling years through 2025. Compared to the 59 other monitored lakes in Missoula County, Inez_deep Lake ranks #51 for water quality.
Source: EPA Water Quality Portal sampling records, Montana DNR, last sampled 2025-09-12. Grade methodology: LakeGrade methodology.
Watch Inez_deep Lake water quality
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
No clarity data. Phosphorus level: 16.3 µg/L. Trophic State Index: 44.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | 16.3 µg/L | A |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 44 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Inez_deep Lake
Compare lakeside cabins, hotels, and vacation rentals near Inez_deep Lake in Missoula County, Montana — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Inez_deep Lake
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 Inez_deep Lake?
Get lake water-quality report cards plus the best cabin & lodging deals near Inez_deep Lake — straight to your inbox. No spam, unsubscribe anytime.
Fishing Inez_deep Lake
Location
County Ranking
Ranked #51 of 60 lakes in Missoula County
Nearby Lakes in Missoula County
Explore Inez_deep Lake across LakeGrade
More Montana Lake Rankings
Other Grade A Lakes in Montana
Mesotrophic Lakes in Montana
More records, surveys & data sources
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2025-09-12
Monitoring stations: 1