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Fishing Big Muddy Reservoir: what the data says
7-acre reservoir near Casper Region. The lake tops out around 8 ft. The contours are modeled from the water's real shoreline and maximum depth. Treat them as a rough guide, and never use them for navigation. Below is the species-by-species picture, pulled from the same data the map uses.
Rainbow Trout fishing at Big Muddy Reservoir
Start shallow in spring: rainbow trout sit in 2 to 8 ft that time of year. Summer fish stay in 2 to 8 ft, and winter fish hold in 2 to 8 ft. If you only fish one area, make it Break off the point: a drop-off around 4 ft that scores prime in winter. In summer the feeding windows fall in early morning and the evening. A dodger + spoon (deep troll) or a flutter spoon covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 8 ft | dawn & dusk | Inline spinner (silver), Small spoon |
| Summer | 2 to 8 ft | dawn & dusk | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 2 to 8 ft | dawn & dusk | Casting spoon, Jerkbait over shoals |
| Winter | 2 to 8 ft | dawn | Jigging spoon, Tube jig (white) |
Largemouth Bass fishing at Big Muddy Reservoir
Start shallow in spring: largemouth bass sit in 2 to 8 ft that time of year. Summer fish stay in 2 to 8 ft, and winter fish hold in 2 to 8 ft. Main-lake point is the standout, a point at roughly 8 ft, rated prime for fall largemouth bass. Plan around early morning and the evening in the warm months. Summer baits: a texas-rigged 10" worm or a deep-diving crankbait gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 8 ft | dawn & dusk | Spinnerbait, Chatterbait |
| Summer | 2 to 8 ft | dawn & dusk | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 2 to 8 ft | midday & dawn | Squarebill crankbait (shad), Spinnerbait |
| Winter | 2 to 8 ft | midday | Blade bait, Jigging spoon |
Notable structure
- Main-lake point: point, around 8 ft
- Deep basin: deep basin, around 7 ft
- Break off the point: drop-off, around 4 ft
Common questions
How deep is Big Muddy Reservoir?
Big Muddy Reservoir is about 8 ft at its deepest point. The contours here are modeled from the water's real shape and maximum depth, so treat them as a rough guide.
What fish are in Big Muddy Reservoir?
Anglers target largemouth bass, rainbow trout on Big Muddy Reservoir.
Where is the best fishing spot on Big Muddy Reservoir?
Main-lake point is the top-rated area: a point in about 8 ft of water that rates prime for largemouth bass in fall. Open the map above to see every rated spot for each species and season.
When is the best time to fish Big Muddy Reservoir?
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.
Nearby waters
Sheepherders Reservoir · Camel Hump Reservoir · Goldeneye Reservoir · Bryan Stock Trail Pond (Lake Makenzie) · North Platte River (Grey Reef) · Big Muddy Pond
See how Big Muddy Reservoir stacks up: best largemouth bass lakes in Wyoming · best rainbow trout lakes in Wyoming
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