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169-acre reservoir near Weld County. The lake tops out around 32 ft. The chart is a model: real shoreline, published maximum depth, interpolated in between. A planning tool, never a navigation product. The season-by-season read for each species follows, from the map's own numbers.
On the chart, Windsor Reservoir draws 168 acres inside 2.2 miles of shoreline. Its 1.2 shoreline index means few bank features; the contours below do the pattern work. About 67% of the surface sits shallower than 15 ft on the modeled chart — that's the weed-and-bait zone. Figure 0.9 mi of water from one end to the other, 0.4 mi at the beam. You'll find it in Weld County. The nearest mapped water is Boyd Lake, 8 mi to the southwest.
In spring, largemouth bass run shallow here, mostly 2 to 10 ft. Midsummer fish sit out in 8 to 20 ft before dropping to 10 to 32 ft for winter. Spring largemouth bass concentrate at Shallow bay flat, a prime-rated weed flat around 4 ft. Fish it in early morning and the evening and you'll meet the bite. You won't need more than a texas-rigged 10" worm or a deep-diving crankbait most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Shallow bay flat (4 ft) | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Break off the point (14 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Main-lake point (8 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 10 to 32 ft | midday | Break off the point (14 ft) | Blade bait, Jigging spoon |
The spring pattern is a shallow one: common carp in 2 to 10 ft. As the season builds they drop to 3 to 15 ft, wintering in 10 to 30 ft. Top water on the chart: Shallow bay flat, a weed flat in the 4 ft range, prime in spring. Time it for early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | midday & dawn | Shallow bay flat (4 ft) | |
| Summer | 3 to 15 ft | dawn & dusk | Shallow bay flat (4 ft) | |
| Fall | 5 to 18 ft | midday | Shallow bay flat (4 ft) | |
| Winter | 10 to 30 ft | midday | Deep basin (27 ft) |
Spring puts crappie in skinny water — 2 to 8 ft is the zone. Warm water sends them out to 10 to 25 ft; cold water stacks them in 10 to 32 ft. Deep basin is the standout, a deep basin at roughly 27 ft, rated prime for winter crappie. 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 | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (4 ft) | 1/16 oz jig + tube, Curly-tail grub |
| Summer | 10 to 25 ft | dawn & dusk | Break off the point (14 ft) | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 8 to 20 ft | dawn | Break off the point (14 ft) | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 10 to 32 ft | midday | Deep basin (27 ft) | Tungsten jig + soft plastic, Tiny jigging spoon |
The spring pattern is a shallow one: bluegill in 1 to 6 ft. Midsummer fish sit out in 4 to 15 ft before dropping to 10 to 25 ft for winter. The spot to know is Shallow bay flat, a weed flat in about 4 ft of water that rates prime for bluegill in spring. Plan around early morning and the evening in the warm months. Summer baits: a small sponge spider (fly) or a micro tube jig gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 6 ft | midday & dusk | Shallow bay flat (4 ft) | 1/32 oz jig + micro plastic, Tiny popper (evenings) |
| Summer | 4 to 15 ft | dawn & dusk | Shallow bay flat (4 ft) | Small sponge spider (fly), Micro tube jig |
| Fall | 6 to 18 ft | midday | Break off the point (14 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 10 to 25 ft | midday | Deep basin (27 ft) | Tungsten ice jig + plastic, Tiny spoon |
The spring pattern is a shallow one: rainbow trout in 5 to 20 ft. As the season builds they drop to 8 to 30 ft, wintering in 6 to 32 ft. Top water on the chart: Break off the point, a drop-off in the 14 ft range, prime in winter. Time it for early morning and the evening. Summer baits: a dodger + spoon (deep troll) or a flutter spoon gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Main-lake point (8 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Break off the point (14 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 9 to 32 ft | dawn & dusk | Main-lake point (8 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 6 to 32 ft | dawn | Break off the point (14 ft) | Jigging spoon, Tube jig (white) |
The chart marks 8 structure features on Windsor Reservoir; the deepest is Deep basin at about 27 ft.
Access data: OpenStreetMap contributors (ODbL) — community-mapped launches. 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 Windsor Reservoir specifically, so confirm the current rules before you fish.
Check the official Colorado fishing regulations →
Windsor Reservoir is about 32 ft (10 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 largemouth bass, common carp, crappie, bluegill, rainbow trout on Windsor Reservoir.
Shallow bay flat is the top-rated area: a weed flat in about 4 ft of water that rates prime for largemouth bass in spring. Open the map above to see every rated spot for each species and season.
For largemouth bass, the summer bite is best in early morning and the evening. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Windsor 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.
Boyd Lake 8 mi · Horsetooth Reservoir 14 mi · Lon Hagler Reservoir 16 mi · Carter Lake 20 mi · Union Reservoir 22 mi · Milavec Reservoir 25 mi · Button Rock Res 31 mi · Estes Lake 32 mi · Boulder City Reservoir 33 mi · Marys Lake 35 mi · Waneka Lake 36 mi · Banner Lakes #11 38 mi
See how Windsor Reservoir stacks up: best largemouth bass lakes in Colorado · best crappie lakes in Colorado · best bluegill lakes in Colorado · best rainbow 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.