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Fishing Boysen Reservoir: what the data says
19,560-acre reservoir near Shoshoni. The lake tops out around 107 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. What follows comes from the same scoring engine that paints the spots above.
Walleye fishing at Boysen Reservoir
Spring walleye on Boysen Reservoir hold shallow, usually 4 to 15 ft. By summer they slide out to 15 to 35 ft, and by winter most fish are in 20 to 40 ft. Break off the point is the standout, a drop-off at roughly 16 ft, rated prime for fall walleye. Best bite is the evening and early morning. Summer baits: a crawler harness on bottom bouncer or a deep crankbait (trolled) gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 4 to 15 ft | dusk & dawn | 1/8 oz jig + minnow, Hair jig |
| Summer | 15 to 35 ft | dusk & dawn | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 12 to 40 ft | dusk & night | Jigging rap, Jig + big minnow |
| Winter | 20 to 40 ft | dusk & dawn | Jigging spoon + minnow head, Rattle bait |
Sauger fishing at Boysen Reservoir
Start shallow in spring: sauger sit in 4 to 18 ft that time of year. Summer pushes them deeper, 10 to 30 ft, and winter fish settle into 15 to 45 ft. The spot to know is Rock reef, a rock pile in about 9 ft of water that rates prime for sauger in spring. In summer the feeding windows fall in early morning and the evening. Tie on a bottom bouncer + crawler or a 3-way rig with stickbait and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 4 to 18 ft | dawn & dusk | 3/8 oz jig + ringworm, Hair jig + minnow |
| Summer | 10 to 30 ft | dawn & dusk | Bottom bouncer + crawler, 3-way rig with stickbait |
| Fall | 12 to 35 ft | dusk & dawn | Jig + big minnow, Blade bait |
| Winter | 15 to 45 ft | dusk | Heavy jigging spoon, Jig + minnow (vertical) |
Smallmouth Bass fishing at Boysen Reservoir
In spring, smallmouth bass run shallow here, mostly 3 to 12 ft. They move out to 10 to 30 ft in summer and finish the year down in 20 to 45 ft. Rock reef is the standout, a rock pile at roughly 9 ft, rated prime for spring smallmouth bass. In summer the feeding windows fall in early morning and the evening. Tie on a drop shot (goby/minnow) or a ned rig and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 12 ft | dawn & dusk | Ned rig, Tube jig |
| Summer | 10 to 30 ft | dawn & dusk | Drop shot (goby/minnow), Ned rig |
| Fall | 8 to 25 ft | midday & dawn | Jerkbait, Blade bait |
| Winter | 20 to 45 ft | midday | Blade bait, Hair jig |
Largemouth Bass fishing at Boysen Reservoir
Start shallow in spring: largemouth bass sit in 2 to 10 ft that time of year. They move out to 8 to 20 ft in summer and finish the year down in 15 to 35 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 5 ft that scores prime in spring. Plan around early morning and the evening in the warm months. Tie on a texas-rigged 10" worm or a deep-diving crankbait and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Squarebill crankbait (shad), Spinnerbait |
| Winter | 15 to 35 ft | midday | Blade bait, Jigging spoon |
Crappie fishing at Boysen Reservoir
Start shallow in spring: crappie sit in 2 to 8 ft that time of year. Summer pushes them deeper, 10 to 25 ft, and winter fish settle into 15 to 35 ft. The spot to know is Shallow bay flat, a weed flat in about 5 ft of water that rates prime for crappie in spring. Plan around early morning and the evening in the warm months. A jig trolled/spider-rigged or a small crankbait (trolled) covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | 1/16 oz jig + tube, Curly-tail grub |
| Summer | 10 to 25 ft | dawn & dusk | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 8 to 20 ft | dawn | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 15 to 35 ft | midday | Tungsten jig + soft plastic, Tiny jigging spoon |
Channel Catfish fishing at Boysen Reservoir
Start shallow in spring: channel catfish sit in 3 to 12 ft that time of year. They move out to 8 to 25 ft in summer and finish the year down in 20 to 40 ft. Shallow feeding flat is the standout, a feeding flat at roughly 21 ft, rated prime for summer channel catfish. Plan around after dark and the evening in the warm months.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 12 ft | dusk | |
| Summer | 8 to 25 ft | night & dusk | |
| Fall | 10 to 30 ft | dusk | |
| Winter | 20 to 40 ft | midday |
Boysen Reservoir also holds yellow perch (10 to 30 ft in summer), lake trout (32 to 107 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Notable structure
- Deep basin: deep basin, around 99 ft
- Deepest basin: deep basin, around 98 ft
- Main-lake point: point, around 32 ft
- Shallow feeding flat: feeding flat, around 26 ft
- Sharp break: drop-off, around 23 ft
- Shallow feeding flat: feeding flat, around 21 ft
- Break off the point: drop-off, around 16 ft
- Secondary point: point, around 13 ft
- Shoreline point: point, around 11 ft
- Rock reef: rock pile, around 9 ft
- Rock reef: rock pile, around 7 ft
- Shallow bay flat: weed flat, around 5 ft
- Back-bay flat: weed flat, around 5 ft
Common questions
How deep is Boysen Reservoir?
Boysen Reservoir is about 107 ft at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
What fish are in Boysen Reservoir?
Anglers target largemouth bass, smallmouth bass, walleye, sauger, crappie, channel catfish, yellow perch, lake trout on Boysen Reservoir.
Where is the best fishing spot on Boysen Reservoir?
Break off the point is the top-rated area: a drop-off in about 16 ft of water that rates prime for walleye in fall. Open the map above to see every rated spot for each species and season.
When is the best time to fish Boysen Reservoir?
For walleye, the summer bite is best in the evening and early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Nearby waters
Lake Cameahwait · Badwater Pond · Middle Depression Reservoir · Burlington Reservoir · Pilot Butte Reservoir · Fiddlers Lake
See how Boysen Reservoir stacks up: best largemouth bass lakes in Wyoming · best smallmouth bass lakes in Wyoming · best walleye lakes in Wyoming · best crappie lakes in Wyoming
Browse all Wyoming fishing maps or every water on DepthScout. Bathymetry credit: state fisheries survey programs. How we build these maps. For fishing guidance only, never navigation.