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40-acre lake in Lake County, Indiana. The lake tops out around 31 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. Species by species, here's what the data says the year looks like.
Traced from the shoreline, Rosser Park Pond runs 38 acres with 1.2 miles of edge. A shoreline index of 1.4 says round and simple: fish relate to depth changes here, not shoreline features. Roughly 92% of the water is 15 ft or less, the band where the food chain lives. End to end it runs roughly 0.4 mi, about 0.2 mi across. You'll find it in Lake County. For a second option, Loomis Lake lies 13 mi east.
The spring pattern is a shallow one: largemouth bass in 2 to 10 ft. Midsummer fish sit out in 8 to 20 ft before dropping to 9 to 31 ft for winter. The spot to know is Shallow bay flat, a weed flat in about 3 ft of water that rates prime for largemouth bass in spring. Plan around early morning and the evening in the warm months. Summer baits: a texas-rigged 10" worm or a deep-diving crankbait gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Shallow bay flat (3 ft) | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Break off the point (7 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Main-lake point (4 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 9 to 31 ft | midday | Break off the point (7 ft) | Blade bait, Jigging spoon |
In spring, bluegill run shallow here, mostly 1 to 6 ft. Midsummer fish sit out in 4 to 15 ft before dropping to 10 to 25 ft for winter. Spring bluegill concentrate at Shallow bay flat, a prime-rated weed flat around 3 ft. Fish it in early morning and the evening and you'll meet the bite. You won't need more than a small sponge spider (fly) or a micro tube jig most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 6 ft | midday & dusk | Shallow bay flat (3 ft) | 1/32 oz jig + micro plastic, Tiny popper (evenings) |
| Summer | 4 to 15 ft | dawn & dusk | Shallow bay flat (3 ft) | Small sponge spider (fly), Micro tube jig |
| Fall | 6 to 18 ft | midday | Break off the point (7 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 10 to 25 ft | midday | Deep basin (17 ft) | Tungsten ice jig + plastic, Tiny spoon |
The spring pattern is a shallow one: channel catfish in 3 to 12 ft. Midsummer fish sit out in 8 to 25 ft before dropping to 9 to 31 ft for winter. The spot to know is Deep basin, a deep basin in about 17 ft of water that rates prime for channel catfish in winter. Plan around after dark and the evening in the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dusk | Shallow bay flat (3 ft) | |
| Summer | 8 to 25 ft | night & dusk | Deep basin (17 ft) | |
| Fall | 10 to 30 ft | dusk | Deep basin (17 ft) | |
| Winter | 9 to 31 ft | midday | Deep basin (17 ft) |
4 pieces of structure are mapped here — Deep basin, around 17 ft, is the deepest of them.
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 Rosser Park Pond specifically, so confirm the current rules before you fish.
Check the official Indiana fishing regulations →
Rosser Park Pond is about 31 ft (9 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, bluegill, channel catfish on Rosser Park Pond.
Shallow bay flat is the top-rated area: a weed flat in about 3 ft of water that rates prime for largemouth bass in spring. The interactive chart above rates every 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 Rosser Park Pond 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.
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See how Rosser Park Pond stacks up: best largemouth bass 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.