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14-acre reservoir in Valley County, Montana. The lake tops out around 12 ft. The depth chart is built from real state fisheries GPS surveys, so the humps, channels and drop-offs you see are measured, not guessed. The season-by-season read for each species follows, from the map's own numbers.
Drawn out, this is 14 acres of water rimmed by 0.7 miles of bank. At index 1.4 the outline is almost a bowl — read the depth changes, not the shoreline. All of it is shallow-zone water — under ~15 ft across the entire basin, so the food chain has the run of the place. Call it 0.3 mi long. The water lies in Valley County. The nearest mapped water is Fort Peck Lake, 10 mi to the southwest.
Spring yellow perch on Valley Reservoir hold shallow, usually 3 to 12 ft. Depth-wise the year is flat: 4 to 12 ft in summer, 4 to 12 ft once it turns cold. The chart's best answer is Deep basin — deep basin, 12 ft, prime for fall. Prime time lands in early morning. The summer box starts with a drop-shot micro plastics or a small spoon tipped with worm.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Shallow bay flat (1 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 4 to 12 ft | dawn | Deep basin (12 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 4 to 12 ft | midday | Deep basin (12 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 4 to 12 ft | midday & dawn | Deep basin (12 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Structure-wise the chart holds 4 features, led in depth by Deep basin at roughly 12 ft.
Season dates, license requirements, and size and bag limits for Montana waters are set by the Montana Fish, Wildlife & Parks — and special regulations can apply to Valley Reservoir specifically, so confirm the current rules before you fish.
Check the official Montana fishing regulations →
Valley Reservoir is about 12 ft (4 m) deep at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
Anglers target yellow perch on Valley Reservoir.
Deep basin is the top-rated area: a deep basin in about 12 ft of water that rates prime for yellow perch in fall. Every other rated spot, per species and season, is on the map above.
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 Valley Reservoir is regulated by the Montana Fish, Wildlife & Parks. Check the official Montana regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Fort Peck Lake 10 mi · Paulo Reservoir 24 mi · Current Reservoir 58 mi · Big Wall Pond 108 mi · Fife Lake 110 mi, SK · Spotted Eagle Lake 114 mi · BR0045 Reservoir 128 mi · Anita Reservoir 128 mi · Gartside Reservoir 128 mi · Boxelder Lake 131 mi · Thomson Lake 132 mi, SK · Gouverneur Reservoir 135 mi, SK
See how Valley Reservoir stacks up: best yellow perch lakes in Montana
Browse all Montana fishing maps or see every water on DepthScout. Bathymetry credit: state fisheries survey programs. 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.