Sign inSign up freeRecent catches at Rock Valley Pit
Shared by DepthScout anglers. Exact spots stay private, always.
Fishing Rock Valley Pit: what the data says
47-acre lake near Sioux County. Iowa DNR survey water. The lake tops out around 20 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. Below is the species-by-species picture, pulled from the same data the map uses.
Largemouth Bass fishing at Rock Valley Pit
Start shallow in spring: largemouth bass sit in 2 to 10 ft that time of year. By summer they slide out to 8 to 20 ft, and by winter most fish are in 6 to 20 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 2 ft that scores prime in spring. In summer the feeding windows fall in early morning and the evening. Summer baits: a texas-rigged 10" worm or a deep-diving crankbait gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Squarebill crankbait (shad), Spinnerbait |
| Winter | 6 to 20 ft | midday | Blade bait, Jigging spoon |
Bluegill fishing at Rock Valley Pit
In spring, bluegill run shallow here, mostly 1 to 6 ft. They move out to 4 to 15 ft in summer and finish the year down in 6 to 20 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 2 ft that scores prime in spring. In summer the feeding windows fall in early morning and the evening. Tie on a small sponge spider (fly) or a micro tube jig and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 1 to 6 ft | midday & dusk | 1/32 oz jig + micro plastic, Tiny popper (evenings) |
| Summer | 4 to 15 ft | dawn & dusk | Small sponge spider (fly), Micro tube jig |
| Fall | 6 to 18 ft | midday | Micro jig + waxworm, Small spoon tipped |
| Winter | 6 to 20 ft | midday | Tungsten ice jig + plastic, Tiny spoon |
Crappie fishing at Rock Valley Pit
Start shallow in spring: crappie sit in 2 to 8 ft that time of year. Summer pushes them deeper, 6 to 20 ft, and winter fish settle into 6 to 20 ft. The spot to know is Deep basin, a deep basin in about 19 ft of water that rates prime for crappie in winter. In summer the feeding windows fall in early morning and the evening. Tie on a jig trolled/spider-rigged or a small crankbait (trolled) and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | 1/16 oz jig + tube, Curly-tail grub |
| Summer | 6 to 20 ft | dawn & dusk | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 8 to 20 ft | dawn | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 6 to 20 ft | midday | Tungsten jig + soft plastic, Tiny jigging spoon |
Yellow Perch fishing at Rock Valley Pit
Start shallow in spring: yellow perch sit in 3 to 12 ft that time of year. By summer they slide out to 6 to 20 ft, and by winter most fish are in 6 to 20 ft. If you only fish one area, make it Deep basin: a deep basin around 19 ft that scores prime in fall. In summer the feeding windows fall in early morning. A drop-shot micro plastics or a small spoon tipped with worm covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 6 to 20 ft | dawn | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 6 to 20 ft | midday | Jigging spoon (small), Perch rig / spreader |
| Winter | 6 to 20 ft | midday & dawn | Tungsten jig + spikes, Rattle spoon (small) |
Channel Catfish fishing at Rock Valley Pit
In spring, channel catfish run shallow here, mostly 3 to 12 ft. By summer they slide out to 6 to 20 ft, and by winter most fish are in 6 to 20 ft. If you only fish one area, make it Deep basin: a deep basin around 19 ft that scores prime in winter. In summer the feeding windows fall in after dark and the evening.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 12 ft | dusk | |
| Summer | 6 to 20 ft | night & dusk | |
| Fall | 6 to 20 ft | dusk | |
| Winter | 6 to 20 ft | midday |
Walleye fishing at Rock Valley Pit
Spring walleye on Rock Valley Pit hold shallow, usually 4 to 15 ft. By summer they slide out to 6 to 20 ft, and by winter most fish are in 6 to 20 ft. Break off the point is the standout, a drop-off at roughly 15 ft, rated prime for fall walleye. Plan around the evening and early morning in the warm months. A crawler harness on bottom bouncer or a deep crankbait (trolled) covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 4 to 15 ft | dusk & dawn | 1/8 oz jig + minnow, Hair jig |
| Summer | 6 to 20 ft | dusk & dawn | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 6 to 20 ft | dusk & night | Jigging rap, Jig + big minnow |
| Winter | 6 to 20 ft | dusk & dawn | Jigging spoon + minnow head, Rattle bait |
Notable structure
- Deep basin: deep basin, around 19 ft
- Break off the point: drop-off, around 15 ft
- Secondary point: point, around 10 ft
- Main-lake point: point, around 7 ft
- Shallow bay flat: weed flat, around 2 ft
Common questions
How deep is Rock Valley Pit?
Rock Valley Pit is about 20 ft at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
What fish are in Rock Valley Pit?
Anglers target largemouth bass, walleye, crappie, bluegill, channel catfish, yellow perch on Rock Valley Pit.
Where is the best fishing spot on Rock Valley Pit?
Shallow bay flat is the top-rated area: a weed flat in about 2 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.
When is the best time to fish Rock Valley Pit?
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.
Nearby waters
Lake Pahoja · Mill Creek (Lake) · Dog Creek (Lake) · Browns Lake · Little Sioux Park Lake · Snyder Bend Lake
See how Rock Valley Pit stacks up: best largemouth bass lakes in Iowa · best walleye lakes in Iowa · best crappie lakes in Iowa · best bluegill lakes in Iowa
Browse all Iowa fishing maps or every water on DepthScout. Bathymetry credit: state fisheries survey programs. How we build these maps. For fishing guidance only, never navigation.