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104-acre lake in Parke County, Indiana. The lake tops out around 22 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.
Traced from the shoreline, Rockville Lake runs 93 acres with 2.4 miles of edge. Index 1.7 on the shoreline: a few honest points and pockets, nothing labyrinthine. Littoral water — the productive band under ~15 ft — makes up 91% of this chart. Figure 0.8 mi of water from one end to the other, 0.4 mi at the beam. The water lies in Parke County. Closest neighbour on DepthScout: Raccoon Lake (Cecil Harden), 9 mi east of here.
In spring, largemouth bass run shallow here, mostly 2 to 10 ft. Summer pushes them deeper, 8 to 20 ft, and winter fish settle into 7 to 22 ft. Shallow bay flat is the standout, a weed flat at roughly 7 ft, rated prime for spring largemouth bass. Time it for early morning and the evening. 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 (7 ft) | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Shallow bay flat (7 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Secondary point (4 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 7 to 22 ft | midday | Deep basin (18 ft) | Blade bait, Jigging spoon |
Spring puts crappie in skinny water — 2 to 8 ft is the zone. As the season builds they drop to 7 to 22 ft, wintering in 7 to 22 ft. Winter crappie concentrate at Deep basin, a prime-rated deep basin around 18 ft. Warm-month bites cluster around early morning and the evening. 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 (7 ft) | 1/16 oz jig + tube, Curly-tail grub |
| Summer | 7 to 22 ft | dawn & dusk | Shallow bay flat (7 ft) | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 8 to 20 ft | dawn | Deep basin (18 ft) | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 7 to 22 ft | midday | Deep basin (18 ft) | Tungsten jig + soft plastic, Tiny jigging spoon |
The spring pattern is a shallow one: bluegill in 1 to 6 ft. As the season builds they drop to 4 to 15 ft, wintering in 7 to 22 ft. Top water on the chart: Back-bay flat, a weed flat in the 2 ft range, prime in spring. Time it for early morning and the evening. 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 | Back-bay flat (2 ft) | 1/32 oz jig + micro plastic, Tiny popper (evenings) |
| Summer | 4 to 15 ft | dawn & dusk | Shallow bay flat (7 ft) | Small sponge spider (fly), Micro tube jig |
| Fall | 6 to 18 ft | midday | Shallow bay flat (7 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 7 to 22 ft | midday | Deep basin (18 ft) | Tungsten ice jig + plastic, Tiny spoon |
In spring, channel catfish run shallow here, mostly 3 to 12 ft. Summer pushes them deeper, 7 to 22 ft, and winter fish settle into 7 to 22 ft. Deep basin is the standout, a deep basin at roughly 18 ft, rated prime for winter channel catfish. Time it for after dark and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dusk | Shallow bay flat (7 ft) | |
| Summer | 7 to 22 ft | night & dusk | Deep basin (18 ft) | |
| Fall | 7 to 22 ft | dusk | Deep basin (18 ft) | |
| Winter | 7 to 22 ft | midday | Deep basin (18 ft) |
Structure-wise the chart holds 6 features, led in depth by Deep basin at roughly 18 ft.
Access data: Indiana DNR — Fishing Access Sites. Confirm conditions and fees locally before you launch.
Season dates, license requirements, and size and bag limits for Indiana waters are set by the Indiana DNR — and special regulations can apply to Rockville Lake specifically, so confirm the current rules before you fish.
Check the official Indiana fishing regulations →
Rockville Lake is about 22 ft (7 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 largemouth bass, crappie, bluegill, channel catfish on Rockville Lake.
Shallow bay flat is the top-rated area: a weed flat in about 7 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 Rockville Lake is regulated by the Indiana DNR. Check the official Indiana regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Raccoon Lake (Cecil Harden) 9 mi · Sugar Creek 17 mi · JI Case Lake 21 mi · Green Valley Lake 24 mi · Bell Pond 26 mi · Wabash River 28 mi · Funk Lake 29 mi · Cagles Mill Lake (Cataract) 29 mi · W Keith Ruble Lake 32 mi · Kickapoo State Park Lake 38 mi, IL · Lincoln Trail State Park Lake 40 mi, IL · Shakamak Lake 42 mi
See how Rockville Lake stacks up: best largemouth bass lakes in Indiana · best crappie lakes in Indiana · best bluegill lakes in Indiana · best channel catfish lakes in Indiana
Browse all Indiana 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.