Where is Middle Thompson Lake?

Middle Thompson Lake is a lake in Lincoln County, Montana. Its water-quality measurements are published by Montana DEQ and shown on this page as reported.

How deep is Middle Thompson Lake?

Middle Thompson Lake has a maximum depth of 160 feet. The lake covers 575 acres.

Are there boat ramps on Middle Thompson Lake?

Middle Thompson Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Thompson Chain of Lakes State Park. Public access is listed as yes.

Can I fish at Middle Thompson Lake?

Middle Thompson Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Montana's fish and wildlife agency, so check its current regulations before you go.

Are there campgrounds on Middle Thompson Lake?

Middle Thompson Lake has 1 public campground from USGS The National Map within 5 km, including Logan State Park Campground. 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.

Middle Thompson Lake

Lincoln County, Montana575 acresView map Directions

No nutrient or algae sampling on record from Montana DEQ for this lake.

Max depth

160 ft

Bathymetric survey

Area

575 acres

Surface area

Shoreline

6 mi

Measured length

160 ft max depth
Public access

See the measurements Directions Where to stay

Middle Thompson Lake in Lincoln County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Maximum depth: 160 ft. Surface area: 575 acres.

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Middle Thompson Lake is a 575-acre lake in Lincoln County, Montana with a maximum depth of 160 feet. Limited fish-species data available. Public access is available with 1 public boat landing.

Source: EPA Water Quality Portal sampling records, Montana DEQ. Methodology: how these readings are compared.

What Middle Thompson Lake is good for

From access and monitoring records, not editorial picks.

Boat launch1 documented ramp
Camping1 public campground nearby
Deep water160 ft surveyed max depth

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Middle Thompson 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.

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Water quality measurements for Middle Thompson Lake

These are the measurements Montana DEQ publishes for Middle Thompson 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 Thompson Lake

Answers come straight from the public measurements and survey records on this page.

Lake Details

Max depth

160 ft

Surface area

575 acres

Shoreline

6 mi

Public access

Yes

Listed by Montana DEQ

Recreation & Access

Boat Landings

Yes

Public Access

Campgrounds

Thompson Chain of Lakes State ParkPublic

Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps

Public campgrounds near Middle Thompson Lake

Logan State Park Campground0.8 km

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 Middle Thompson Lake

Compare lakeside cabins, hotels, and vacation rentals near Middle Thompson Lake in Lincoln 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 Thompson Lake

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Fishing Middle Thompson Lake

→ Middle Thompson Lake fishing regulations (limits, seasons, special rules)

Nearby Lakes in Lincoln County

Upper Thompson Lake2.2 miView →Loon Lake—View →Miller Lake—View →Island Lake—View →Lake Koocanusa14.8 ft clear—View →Howard Lake—View →

Frequently asked questions about Middle Thompson Lake

Where is Middle Thompson Lake?: Middle Thompson Lake is a lake in Lincoln 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 Thompson Lake?: Middle Thompson Lake in Lincoln County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Maximum depth: 160 ft. Surface area: 575 acres.
Is Middle Thompson Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Middle Thompson Lake?: Middle Thompson Lake has a maximum depth of 160 feet. The lake covers 575 acres.
Are there boat ramps on Middle Thompson Lake?: Middle Thompson Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Thompson Chain of Lakes State Park. Public access is listed as yes.
Can I fish at Middle Thompson Lake?: Middle Thompson Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Montana's fish and wildlife agency, so check its current regulations before you go.
Are there campgrounds on Middle Thompson Lake?: Middle Thompson Lake has 1 public campground from USGS The National Map within 5 km, including Logan State Park Campground. 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.