Mystic Lake
Gallatin County, Montana35 acresView mapDirections
No nutrient or algae sampling on record from Montana DEQ for this lake.
Mystic Lake in Gallatin County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Surface area: 35 acres.
Mystic Lake is a 35-acre lake in Gallatin County, Montana.
Source: EPA Water Quality Portal sampling records, Montana DEQ. Methodology: how these readings are compared.
What Mystic Lake is good for
From access and monitoring records, not editorial picks.
- Camping1 public campground nearby
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Mystic 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 Mystic Lake
These are the measurements Montana DEQ publishes for Mystic 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 Mystic Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
35 acres
Shoreline
1.6 mi
No bathymetric survey has been published for Mystic Lake, so its depth is not documented here.
Recreation & Access
Public campgrounds near Mystic Lake
- Mystic Lake Cabin0.5 kmReserve
Nearest public campgrounds in the USGS National Map inventory, within about 3 miles. An empty list means USGS records no campground that close, which is not the same as camping being unavailable. Where the source gives an official reservation link, it is used; the cabin and hotel search does not cover campsites. More camping lakes
Stays via Stay22
Stays near Mystic Lake
Compare lakeside cabins, hotels, and vacation rentals near Mystic Lake in Gallatin 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 Mystic 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 Mystic Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Mystic Lake
Nearby Lakes in Gallatin County
Frequently asked questions about Mystic Lake
Where is Mystic Lake?
- Mystic Lake is a lake in Gallatin County, Montana. Its water-quality measurements are published by Montana DEQ and shown on this page as reported.
What is the water quality of Mystic Lake?
- Mystic Lake in Gallatin County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Surface area: 35 acres.
Is Mystic Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Are there campgrounds on Mystic Lake?
- Mystic Lake has 1 public campground from USGS The National Map within 5 km, including Mystic Lake Cabin. This is a location join, not a booking. Cabins and hotels are listed separately; campsite reservations use the official link when the source provides one.
Explore Mystic Lake across LakeQuality
More lakes in Montana
Other Lakes in Montana
Where this data comes from
Measurements for Mystic Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Public campgrounds from USGS The National Map Structures, within about 3 miles