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7,075-acre reservoir near Grand County. The lake tops out around 221 ft. Contours on this water are modeled from its actual shoreline and max depth. Good for finding likely water, never for navigation. What follows comes from the same scoring engine that paints the spots above.
The outline encloses 7,046 acres, worked by 40.8 miles of shoreline, broken up by 9 islands. That shoreline is heavily fingered (development index 3.5) — bays, points and pockets everywhere, which multiplies the fishable edge. About 23% of the surface sits shallower than 15 ft on the modeled chart — that's the weed-and-bait zone. End to end it runs roughly 8.6 mi, about 4.8 mi across. Grand County claims this one. Shadow Mountain Reservoir sits 5 mi north — the closest neighbouring chart.
Early season kokanee use the shallows, holding in 10 to 30 ft. Summer is a 30 to 70 ft game here, winter a 20 to 80 ft one. The chart's best answer is Sharp break — drop-off, 28 ft, prime for spring. Best bite is early morning. Tie on a dodger + pink/orange squid on downrigger or a kokanee bug + corn and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 30 ft | dawn | Sharp break (28 ft) | Small dodger + squid (pink), Wedding-ring spinner + corn |
| Summer | 30 to 70 ft | dawn | Sharp break (28 ft) | Dodger + pink/orange squid on downrigger, Kokanee bug + corn |
| Fall | 5 to 40 ft | dawn | Sharp break (28 ft) | Dodger + squid (deeper red/purple), Small spoon |
| Winter | 20 to 80 ft | dawn | Offshore hump (21 ft) | Small glow jig + corn or maggot, Tiny spoon |
In spring, brown trout run shallow here, mostly 3 to 25 ft. Summer pushes them deeper, 25 to 60 ft, and winter fish settle into 5 to 35 ft. Sharp break is the standout, a drop-off at roughly 28 ft, rated prime for summer brown trout. Time it for after dark and early morning. You won't need more than a spoon at the thermocline or a deep stickbait (night) most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 25 ft | dawn & dusk | Shoreline point (14 ft) | Stickbait off planer boards (shallow), Small spoon along mud lines |
| Summer | 25 to 60 ft | night & dawn | Sharp break (28 ft) | Spoon at the thermocline, Deep stickbait (night) |
| Fall | 5 to 30 ft | dusk & dawn | Rock reef (5 ft) | Jerkbait over gravel, Casting spoon |
| Winter | 5 to 35 ft | dawn | Sharp break (28 ft) | Jigging spoon, Small stickbait (slow) |
In spring, cutthroat trout run shallow here, mostly 3 to 15 ft. Summer pushes them deeper, 10 to 35 ft, and winter fish settle into 10 to 40 ft. Sharp break is the standout, a drop-off at roughly 28 ft, rated prime for summer cutthroat trout. Time it for early morning and the evening. You won't need more than a trolled spoon (small) or an inline spinner most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 15 ft | dawn & dusk | Shoreline point (14 ft) | Inline spinner (silver/gold), Small spoon |
| Summer | 10 to 35 ft | dawn & dusk | Sharp break (28 ft) | Trolled spoon (small), Inline spinner |
| Fall | 5 to 25 ft | dawn & dusk | Shoreline point (14 ft) | Casting spoon, Inline spinner |
| Winter | 10 to 40 ft | dawn | Sharp break (28 ft) | Small jigging spoon, Marabou jig |
When the water first warms, lake trout slide up into 10 to 40 ft. Summer is a 50 to 120 ft game here, winter a 20 to 80 ft one. Start at Offshore hump. It's an offshore hump holding about 21 ft of water and rates prime come winter. The feeding windows run early morning. Keep a white tube jig (deep) or a magnum spoon on downrigger rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Shoreline point (14 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 50 to 120 ft | dawn | Break off the point (99 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Offshore hump (21 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 20 to 80 ft | dawn | Offshore hump (21 ft) | White tube jig, Airplane jig |
Spring rainbow trout on Granby Reservoir hold shallow, usually 5 to 20 ft. They move out to 8 to 30 ft in summer and finish the year down in 8 to 40 ft. Put Sharp break first on the milk run — a drop-off near 28 ft that grades prime for winter. The feeding windows run early morning and the evening. The summer box starts with a dodger + spoon (deep troll) or a flutter spoon.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Shoreline point (14 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Sharp break (28 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Shoreline point (14 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | Sharp break (28 ft) | Jigging spoon, Tube jig (white) |
14 pieces of structure are mapped here — Deep basin, around 188 ft, is the deepest of them.
Access data: OpenStreetMap contributors (ODbL) — community-mapped launches. Confirm conditions and fees locally before you launch.
| Date | Species | Count | Size |
|---|---|---|---|
| Jul 24 | Catchable trout | — | — |
Source: Colorado Parks & Wildlife stocking report, retrieved 2026-08-18.
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 Granby Reservoir specifically, so confirm the current rules before you fish.
Check the official Colorado fishing regulations →
Granby Reservoir is about 221 ft (67 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 kokanee, brown trout, cutthroat trout, lake trout, rainbow trout on Granby Reservoir.
Sharp break is the top-rated area: a drop-off in about 28 ft of water that rates prime for cutthroat trout in summer. The interactive chart above rates every spot for each species and season.
For kokanee, the summer bite is best in early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Yes — per Colorado Parks & Wildlife stocking report records, Granby Reservoir was most recently stocked Jul 24 with catchable trout. The full stocking history is listed above.
Fishing on Granby 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.
Shadow Mountain Reservoir 5 mi · Monarch Lake 6 mi · Grand Lake 6 mi · Willow Creek Reservoir 7 mi · Meadow Creek Reservoir 8 mi · Diamond Lake Upper 14 mi · Bob Lake 16 mi · Woodland Lake 16 mi · Crater Lake #1, Upper 19 mi · Marys Lake 20 mi · Barker Reservoir 22 mi · Estes Lake 23 mi
See how Granby Reservoir stacks up: best rainbow trout lakes in Colorado · best lake trout lakes in Colorado · best brown trout lakes in Colorado · best kokanee lakes in Colorado
More water nearby: Grand 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.