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102-acre lake in Carbon County, Montana. The lake tops out around 120 ft. The depth chart is built from real state fisheries GPS surveys, so the humps, channels and drop-offs you see are measured, not guessed. The rest of this page walks each species through its year, using the map's own scoring.
On the chart, Moon Lake draws 80 acres inside 1.9 miles of shoreline. Index 1.5 on the shoreline: a few honest points and pockets, nothing labyrinthine. About 13% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. Tip to tip the water measures near 0.6 mi with a 0.4-mi widest point. You'll find it in Carbon County. Closest neighbour on DepthScout: Shelf Lake, 1 mi southeast of here.
Early season cutthroat trout use the shallows, holding in 3 to 15 ft. Expect a summer slide to 10 to 35 ft, then a winter hold in 10 to 40 ft. Put Main-lake point first on the milk run — a point near 19 ft that grades prime for fall. In summer the feeding windows fall in early morning and the evening. Tie on a trolled spoon (small) or an inline spinner and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 15 ft | dawn & dusk | Main-lake point (19 ft) | Inline spinner (silver/gold), Small spoon |
| Summer | 10 to 35 ft | dawn & dusk | Main-lake point (19 ft) | Trolled spoon (small), Inline spinner |
| Fall | 5 to 25 ft | dawn & dusk | Main-lake point (19 ft) | Casting spoon, Inline spinner |
| Winter | 10 to 40 ft | dawn | Main-lake point (19 ft) | Small jigging spoon, Marabou jig |
6 pieces of structure are mapped here — Deep basin, around 115 ft, is the deepest of them.
Season dates, license requirements, and size and bag limits for Montana waters are set by the Montana Fish, Wildlife & Parks — and special regulations can apply to Moon Lake specifically, so confirm the current rules before you fish.
Check the official Montana fishing regulations →
Moon Lake is about 120 ft (37 m) deep at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
Anglers target cutthroat trout on Moon Lake.
Main-lake point is the top-rated area: a point in about 19 ft of water that rates prime for cutthroat trout in fall. The interactive chart above rates every spot for each species and season.
For cutthroat trout, the summer bite is best in early morning and the evening. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Moon Lake is regulated by the Montana Fish, Wildlife & Parks. Check the official Montana regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Shelf Lake 1 mi · Sliderock Lake 1 mi · Triangle Lake (Carbon) 2 mi · Black Canyon Lake 2 mi · Glacier Lake 2 mi, WY · Albino Lake 3 mi · Crescent Lake (Hellroaring Lake #8) 3 mi · Emerald Lake 3 mi, WY · Snow Lake 3 mi, WY · Second Rock Lake 3 mi · Golden Lake 3 mi · Two Bits Lake 3 mi
See how Moon Lake stacks up: best cutthroat trout lakes in Montana
More water nearby: Carbon County fishing maps (65 charts). Browse all Montana fishing maps or see every water on DepthScout. Bathymetry credit: state fisheries survey programs. How we build these maps. Fish here with a sonar unit that logs? Send us your depth data and we'll improve this chart, credited to you. For fishing guidance only, never navigation.