Sign inSign up free Sign inSign up free Sign inSign up freeShared by DepthScout anglers. Exact spots stay private, always.
21-acre lake in Beaverhead County, Montana. The lake tops out around 50 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. Every species below gets its seasonal read from the same numbers driving the chart.
Traced from the shoreline, Morrison Lake runs 22 acres with 0.9 miles of edge. A shoreline index of 1.3 says round and simple: fish relate to depth changes here, not shoreline features. Littoral water — the productive band under ~15 ft — makes up 21% of this chart. Call it 0.3 mi long by 0.2 mi wide at the broadest reach. The water lies in Beaverhead County. The nearest mapped water is Clark Canyon Reservoir, 27 mi to the north.
Spring puts rainbow trout in skinny water — 5 to 20 ft is the zone. Warm water sends them out to 8 to 30 ft; cold water stacks them in 8 to 40 ft. Main-lake point is the standout, a point at roughly 10 ft, rated prime for spring rainbow trout. Plan around early morning and the evening in the warm months. A dodger + spoon (deep troll) or a flutter spoon covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Main-lake point (10 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Main-lake point (10 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Main-lake point (10 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | Break off the point (49 ft) | Jigging spoon, Tube jig (white) |
Come spring, look for cutthroat trout tight to the bank in 3 to 15 ft. They move out to 10 to 35 ft in summer and finish the year down in 10 to 40 ft. If you only fish one area, make it Main-lake point: a point around 10 ft that scores prime in fall. Best bite is early morning and the evening. A trolled spoon (small) or an inline spinner is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 15 ft | dawn & dusk | Main-lake point (10 ft) | Inline spinner (silver/gold), Small spoon |
| Summer | 10 to 35 ft | dawn & dusk | Main-lake point (10 ft) | Trolled spoon (small), Inline spinner |
| Fall | 5 to 25 ft | dawn & dusk | Main-lake point (10 ft) | Casting spoon, Inline spinner |
| Winter | 10 to 40 ft | dawn | Main-lake point (10 ft) | Small jigging spoon, Marabou jig |
4 pieces of structure are mapped here — Deep basin, around 50 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 Morrison Lake specifically, so confirm the current rules before you fish.
Check the official Montana fishing regulations →
Morrison Lake is about 50 ft (15 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 rainbow trout, cutthroat trout on Morrison Lake.
Main-lake point is the top-rated area: a point in about 10 ft of water that rates prime for cutthroat trout in fall. The interactive chart above rates every spot for each species and season.
For rainbow 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 Morrison 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.
Clark Canyon Reservoir 27 mi · Reservoir Lake 42 mi · Van Houten Lake 49 mi · Kelly Reservioir 51 mi · Beaverhead River 52 mi · Minneopa Lake 55 mi · Lower Miner Lakes 56 mi · Sawtooth Lake 57 mi · Deerhead Lake 58 mi · Tendoy Lake 63 mi · Bear Lake (Beaverhead) 63 mi · Lake Agnes 64 mi
See how Morrison Lake stacks up: best rainbow trout lakes in Montana · best cutthroat trout lakes in Montana
More water nearby: Beaverhead County fishing maps (24 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.