Middle Quartz Lake
Flathead County, Montana49 acresView mapDirections
No nutrient or algae sampling on record from Montana DEQ for this lake.
Middle Quartz Lake in Flathead County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Surface area: 49 acres.
Middle Quartz Lake is a 49-acre lake in Flathead County, Montana.
Source: EPA Water Quality Portal sampling records, Montana DEQ. Methodology: how these readings are compared.
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Middle Quartz Lake is safe to swim in today is a call for the Montana Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Middle Quartz Lake
These are the measurements Montana DEQ publishes for Middle Quartz Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. TSI undefined.
Ask about Middle Quartz Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
49 acres
Shoreline
1.4 mi
No bathymetric survey has been published for Middle Quartz Lake, so its depth is not documented here.
Stays via Stay22
Stays near Middle Quartz Lake
Compare lakeside cabins, hotels, and vacation rentals near Middle Quartz Lake in Flathead 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 Middle Quartz Lake
Prices for Oct 16–18, 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 whole trip? See where to stay at Montana’s top lakes →
Follow Middle Quartz Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Middle Quartz Lake
Nearby Lakes in Flathead County
Frequently asked questions about Middle Quartz Lake
Where is Middle Quartz Lake?
- Middle Quartz Lake is a lake in Flathead County, Montana. Its water-quality measurements are published by Montana DEQ and shown on this page as reported.
What is the water quality of Middle Quartz Lake?
- Middle Quartz Lake in Flathead County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Surface area: 49 acres.
Is Middle Quartz Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Middle Quartz Lake across LakeQuality
More lakes in Montana
Other Lakes in Montana
Where this data comes from
Measurements for Middle Quartz Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.