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37-acre reservoir near Delta County. The lake tops out around 46 ft. This chart interpolates between a real shoreline and a known maximum depth. It will point you at likely water, but it is not a navigation product. Here is how the season plays out for each species, straight from the data behind the map.
The outline encloses 37 acres, worked by 1 miles of shoreline. Nearly circular (index 1.2), so the story is the bottom, not the bank. 25% of the surface is littoral (under ~15 ft), per the model — cover, weeds and forage water. Tip to tip the water measures near 0.4 mi with a 0.2-mi widest point. It sits in Delta County. Island Lake sits 4 mi northeast — the closest neighbouring chart.
When the water first warms, brook trout slide up into 2 to 15 ft. By summer they slide out to 10 to 30 ft, and by winter most fish are in 3 to 20 ft. If you only fish one area, make it Shoreline break: a drop-off around 21 ft that scores prime in summer. In summer the feeding windows fall in early morning and the evening. Keep a small spoon fished deep or a trolled lake-clear wobbler + worm rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Shallow bay flat (6 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | Shoreline break (21 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | open water | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Shoreline break (21 ft) | Small jigging spoon, Tungsten jig + plastic |
Count 4 structure marks on this chart. The deepest, Deep basin, sits near 39 ft.
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 Battlement Reservoir Big specifically, so confirm the current rules before you fish.
Check the official Colorado fishing regulations →
Battlement Reservoir Big 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 brook trout on Battlement Reservoir Big.
Shoreline break is the top-rated area: a drop-off in about 21 ft of water that rates prime for brook trout in summer. The map above holds the full rated-spot list for every species and season.
For brook trout, 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 Battlement Reservoir Big 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.
Island Lake 4 mi · Water Dog Reservoir 4 mi · Reed Reservoir 6 mi · Eggleston Lake Big 7 mi · Eggleston Lake Little 8 mi · Youngs Creek Reservoir #3 8 mi · Kitson Reservoir 8 mi · Neversweat Reservoir 9 mi · Bonham Reservoir 11 mi · Vela Reservoir 11 mi · Juniata Reservoir 13 mi · Gunnison River (Gorge) 23 mi
See how Battlement Reservoir Big stacks up: best brook trout lakes in Colorado
More water nearby: Delta County fishing maps (8 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.