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Fishing Bonham Reservoir: what the data says
76-acre reservoir near Mesa County. The lake tops out around 48 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. Here is how the season plays out for each species, straight from the data behind the map.
Arctic Grayling fishing at Bonham Reservoir
Spring arctic grayling on Bonham Reservoir hold shallow, usually 2 to 10 ft. Summer pushes them deeper, 3 to 15 ft, and winter fish settle into 8 to 25 ft. The spot to know is Break off the point, a drop-off in about 22 ft of water that rates prime for arctic grayling in fall. Best bite is the evening and early morning. A dry fly (parachute adams, elk hair caddis) or a small inline spinner covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 10 ft | midday & dusk | 1/16 oz spinner (silver), Small dry fly (Adams, Griffith's) |
| Summer | 3 to 15 ft | dusk & dawn | Dry fly (parachute Adams, elk hair caddis), Small inline spinner |
| Fall | 6 to 20 ft | midday | Small spoon, Beadhead nymph under indicator |
| Winter | 8 to 25 ft | midday & dawn | Tungsten jig + waxworm, Small jigging spoon (gold) |
Brown Trout fishing at Bonham Reservoir
Spring brown trout on Bonham Reservoir hold shallow, usually 3 to 25 ft. They move out to 14 to 48 ft in summer and finish the year down in 5 to 35 ft. The spot to know is Break off the point, a drop-off in about 22 ft of water that rates prime for brown trout in summer. Plan around after dark and early morning in the warm months. Summer baits: a spoon at the thermocline or a deep stickbait (night) gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 25 ft | dawn & dusk | Stickbait off planer boards (shallow), Small spoon along mud lines |
| Summer | 14 to 48 ft | night & dawn | Spoon at the thermocline, Deep stickbait (night) |
| Fall | 5 to 30 ft | dusk & dawn | Jerkbait over gravel, Casting spoon |
| Winter | 5 to 35 ft | dawn | Jigging spoon, Small stickbait (slow) |
Cutthroat Trout fishing at Bonham Reservoir
Start shallow in spring: cutthroat trout sit in 3 to 15 ft that time of year. 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 Break off the point: a drop-off around 22 ft that scores prime in summer. Plan around early morning and the evening in the warm months. Tie on a trolled spoon (small) or a inline spinner and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 15 ft | dawn & dusk | Inline spinner (silver/gold), Small spoon |
| Summer | 10 to 35 ft | dawn & dusk | Trolled spoon (small), Inline spinner |
| Fall | 5 to 25 ft | dawn & dusk | Casting spoon, Inline spinner |
| Winter | 10 to 40 ft | dawn | Small jigging spoon, Marabou jig |
Rainbow Trout fishing at Bonham Reservoir
Start shallow in spring: rainbow trout sit in 5 to 20 ft that time of year. They move out to 8 to 30 ft in summer and finish the year down in 8 to 40 ft. If you only fish one area, make it Break off the point: a drop-off around 22 ft that scores prime in winter. 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 | Go-to baits |
|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | Jigging spoon, Tube jig (white) |
Notable structure
- Deep basin: deep basin, around 41 ft
- Break off the point: drop-off, around 22 ft
- Main-lake point: point, around 12 ft
- Secondary point: point, around 12 ft
- Shallow bay flat: weed flat, around 6 ft
- Back-bay flat: weed flat, around 6 ft
Common questions
How deep is Bonham Reservoir?
Bonham Reservoir is about 48 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 Bonham Reservoir?
Anglers target rainbow trout, brown trout, arctic grayling, cutthroat trout on Bonham Reservoir.
Where is the best fishing spot on Bonham Reservoir?
Break off the point is the top-rated area: a drop-off in about 22 ft of water that rates prime for cutthroat trout in summer. Open the map above to see every rated spot for each species and season.
When is the best time to fish Bonham Reservoir?
For arctic grayling, 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
Neversweat Reservoir · Vela Reservoir · Kitson Reservoir · Eggleston Lake Little · Youngs Creek Reservoir #3 · Eggleston Lake Big
See how Bonham Reservoir stacks up: best rainbow trout lakes in Colorado · best brown trout lakes in Colorado · best cutthroat trout lakes in Colorado
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