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2,403-acre reservoir near Park County. The lake tops out around 46 ft. Depth here is modeled from the true shoreline and max depth rather than surveyed; use it to plan, not to navigate. What the data behind the map says about each species, season by season:
Spinney Mtn Res maps at 2,019 acres behind 15.7 miles of shoreline — 6 islands included. An index of 2.5 puts the bank firmly in maze territory: point after pocket after cove, every one a casting target. Roughly 56% of the water is 15 ft or less as modeled, the band where the food chain lives. End to end it runs roughly 3.1 mi, about 1.8 mi across. Park County claims this one. If the bite dies, Eleven Mile Res is 7 mi to the southeast.
Spring puts yellow perch in skinny water — 3 to 12 ft is the zone. As the season builds they drop to 10 to 30 ft, wintering in 15 to 35 ft. Spring yellow perch concentrate at Shallow bay flat, a prime-rated weed flat around 6 ft. Warm-month bites cluster around early morning. A drop-shot micro plastics or a small spoon tipped with worm covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Shallow bay flat (6 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 10 to 30 ft | dawn | Break off the point (21 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Break off the point (21 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Deep basin (39 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Spring northern pike on Spinney Mtn Res hold shallow, usually 2 to 8 ft. By summer they slide out to 8 to 20 ft, and by winter most fish are in 5 to 15 ft. The chart's best answer is Shallow bay flat — weed flat, 6 ft, prime for spring. Prime time lands in early morning and the evening. The summer box starts with a bucktail or a weedless spoon over cabbage.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (6 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Shallow bay flat (6 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Shallow bay flat (6 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Shallow bay flat (6 ft) | Tip-ups, Large jigging spoon |
Start shallow in spring: brown trout sit in 3 to 25 ft that time of year. Summer pushes them deeper, 14 to 46 ft, and winter fish settle into 5 to 35 ft. The spot to know is Break off the point, a drop-off in about 21 ft of water that rates prime for brown trout in summer. Warm-month bites cluster around after dark and early morning. Throw a spoon at the thermocline or a deep stickbait (night) until the fish tell you otherwise.
| 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 46 ft | night & dawn | Break off the point (21 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 (21 ft) | Jigging spoon, Small stickbait (slow) |
Come spring, look for rainbow trout tight to the bank in 5 to 20 ft. 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 21 ft that scores prime in winter. Best bite is early morning and the evening. A dodger + spoon (deep troll) or a flutter spoon is the honest summer answer here.
| 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 (21 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 (21 ft) | Jigging spoon, Tube jig (white) |
The chart marks 6 structure features on Spinney Mtn Res; the deepest is Deep basin at about 39 ft.
Access data: Colorado Parks & Wildlife — Boat Ramps. Confirm conditions and fees locally before you launch.
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 Spinney Mtn Res specifically, so confirm the current rules before you fish.
Check the official Colorado fishing regulations →
Spinney Mtn Res is about 46 ft (14 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 yellow perch, northern pike, brown trout, rainbow trout on Spinney Mtn Res.
Shallow bay flat is the top-rated area: a weed flat in about 6 ft of water that rates prime for yellow perch in spring. Scroll up to the map for the complete spot list by species and season.
For yellow perch, 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.
Fishing on Spinney Mtn Res 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.
Eleven Mile Res 7 mi · Cheesman Reservoir 24 mi · Clear Creek Reservoir 33 mi · South Platte River 34 mi · Arkansas River (Colorado) 37 mi · McReynolds Reservoir 37 mi · Twin Lakes Lower 38 mi · Strontia Springs Res 41 mi · Murray Lake 43 mi · Chicago Lake Lower 44 mi · Turquoise Lake 45 mi · Brush Hollow Reservoir 48 mi
See how Spinney Mtn Res stacks up: best northern pike lakes in Colorado · best rainbow trout lakes in Colorado · best yellow perch lakes in Colorado · best brown trout lakes in Colorado
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.