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76-acre reservoir near Mesa County. The lake tops out around 48 ft. Contours on this water are modeled from its actual shoreline and max depth. Good for finding likely water, never for navigation. What the data behind the map says about each species, season by season:
Bonham Reservoir maps at 86 acres behind 3.2 miles of shoreline. That shoreline is heavily fingered (development index 2.4) — bays, points and pockets everywhere, which multiplies the fishable edge. Roughly 59% of the water is 15 ft or less as modeled, the band where the food chain lives. End to end it runs roughly 0.9 mi, about 0.3 mi across. Mesa County claims this one. Its nearest charted neighbour, Neversweat Reservoir, is 2 mi to the west.
Spring arctic grayling on Bonham Reservoir hold shallow, usually 2 to 10 ft. They move out to 3 to 15 ft in summer and finish the year down in 8 to 25 ft. Put Break off the point first on the milk run — a drop-off near 22 ft that grades prime for fall. The feeding windows run the evening and early morning. The summer box starts with a dry fly (parachute adams, elk hair caddis) or a small inline spinner.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | midday & dusk | Shallow bay flat (6 ft) | 1/16 oz spinner (silver), Small dry fly (Adams, Griffith's) |
| Summer | 3 to 15 ft | dusk & dawn | Shallow bay flat (6 ft) | Dry fly (parachute Adams, elk hair caddis), Small inline spinner |
| Fall | 6 to 20 ft | midday | Break off the point (22 ft) | Small spoon, Beadhead nymph under indicator |
| Winter | 8 to 25 ft | midday & dawn | Break off the point (22 ft) | Tungsten jig + waxworm, Small jigging spoon (gold) |
Spring puts brown trout in skinny water — 3 to 25 ft is the zone. As the season builds they drop to 14 to 48 ft, wintering in 5 to 35 ft. Summer brown trout concentrate at Break off the point, a prime-rated drop-off around 22 ft. Warm-month bites cluster around after dark and early morning. A spoon at the thermocline or a deep stickbait (night) covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 25 ft | dawn & dusk | Main-lake point (12 ft) | Stickbait off planer boards (shallow), Small spoon along mud lines |
| Summer | 14 to 48 ft | night & dawn | Break off the point (22 ft) | Spoon at the thermocline, Deep stickbait (night) |
| Fall | 5 to 30 ft | dusk & dawn | Main-lake point (12 ft) | Jerkbait over gravel, Casting spoon |
| Winter | 5 to 35 ft | dawn | Break off the point (22 ft) | Jigging spoon, Small stickbait (slow) |
Spring puts cutthroat trout in skinny water — 3 to 15 ft is the zone. As the season builds they drop to 10 to 35 ft, wintering in 10 to 40 ft. Summer cutthroat trout concentrate at Break off the point, a prime-rated drop-off around 22 ft. Warm-month bites cluster around early morning and the evening. A trolled spoon (small) or an inline spinner covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 15 ft | dawn & dusk | Main-lake point (12 ft) | Inline spinner (silver/gold), Small spoon |
| Summer | 10 to 35 ft | dawn & dusk | Break off the point (22 ft) | Trolled spoon (small), Inline spinner |
| Fall | 5 to 25 ft | dawn & dusk | Main-lake point (12 ft) | Casting spoon, Inline spinner |
| Winter | 10 to 40 ft | dawn | Break off the point (22 ft) | Small jigging spoon, Marabou jig |
Early season rainbow trout use the shallows, holding in 5 to 20 ft. Summer is an 8 to 30 ft game here, winter an 8 to 40 ft one. The chart's best answer is Break off the point — drop-off, 22 ft, prime for winter. Best bite is early morning and the evening. Tie on a dodger + spoon (deep troll) or a flutter spoon and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Main-lake point (12 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Break off the point (22 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Main-lake point (12 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | Break off the point (22 ft) | Jigging spoon, Tube jig (white) |
6 pieces of structure are mapped here — Deep basin, around 41 ft, is the deepest of them.
Season dates, license requirements, and size and bag limits for Colorado waters are set by the Colorado Parks & Wildlife — and special regulations can apply to Bonham Reservoir specifically, so confirm the current rules before you fish.
Check the official Colorado fishing regulations →
Bonham Reservoir is about 48 ft (15 m) deep 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.
Anglers target arctic grayling, brown trout, cutthroat trout, rainbow trout 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. The interactive chart above rates every spot for each species and season.
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.
Fishing on Bonham Reservoir is regulated by the Colorado Parks & Wildlife. Check the official Colorado regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Neversweat Reservoir 2 mi · Kitson Reservoir 3 mi · Vela Reservoir 3 mi · Eggleston Lake Little 3 mi · Youngs Creek Reservoir #3 4 mi · Eggleston Lake Big 4 mi · Reed Reservoir 5 mi · Island Lake 7 mi · Water Dog Reservoir 10 mi · Battlement Reservoir Big 11 mi · Juniata Reservoir 22 mi · Gunnison River (Gorge) 25 mi
See how Bonham Reservoir stacks up: best rainbow trout lakes in Colorado · best brown trout lakes in Colorado · best cutthroat trout lakes in Colorado
More water nearby: Mesa County fishing maps (6 charts). Browse all Colorado fishing maps or see every water on DepthScout. 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.