Upper Thompson Lake fishing: Cutthroat Trout, Rainbow Trout, Brook Trout
Target species: Cutthroat Trout, Rainbow Trout, Brook Trout, Yellow Perch
The lake
Upper Thompson Lake covers 291 acres in Montana, across Lincoln County. It is a lake: 91.6% of it is 45 feet deep or less; the deepest point measured is at least 100 feet (30.5 m). Our records hold 8 species for this water.
Depth and bottom
Deepest measured point: at least 100 ft (30.5 m). That is the deepest contour line: the bottom goes deeper. 91.6% of the water is 45 feet or shallower. We hold 50 depth contour lines for this water.
- 0–5 ft: 25.3% of the water
- 5–10 ft: 11.2% of the water
- 10–15 ft: 12.6% of the water
- 15–20 ft: 10.5% of the water
- 20–25 ft: 9.6% of the water
- 25–30 ft: 7.2% of the water
- 30–35 ft: 6.4% of the water
- 35–40 ft: 5.5% of the water
- 40–45 ft: 3.3% of the water
- 45–50 ft: 2.8% of the water
- 50–55 ft: 2.7% of the water
- 55–60 ft: 1.2% of the water
- 60–65 ft: 0.6% of the water
- 65–70 ft: 0.5% of the water
- 70–75 ft: 0.4% of the water
- 75–80 ft: 0.3% of the water
Stocking: 448,946 fish, 1936–2024
Montana Fish, Wildlife & Parks records list 448,946 fish released into this water from 1936 to 2024.
- Rainbow Trout: 116,125 in 1952–2024
- Cutthroat Trout: 31,240 in 1936–1969
- Brook Trout: 13,800 in 1942–1951
2 more species on the stocking list.
4 target fish, led by Cutthroat Trout
- Cutthroat Trout — Feeding water: 50–65°F.
- Rainbow Trout — Feeding water: 50–65°F.
- Brook Trout — Feeding water: 50–65°F.
- Yellow Perch — Feeding water: 45–75°F.
Also recorded here: Northern Pike, Smallmouth Bass, Black Crappie, Pumpkinseed.
Where this data comes from
- Montana Fish, Wildlife & Parks — Montana Fish, Wildlife & Parks: depth contours: class A, a survey of the bottom.
