Lake Red Rock fishing: Northern Pike, Largemouth Bass, Walleye
Target species: Northern Pike, Largemouth Bass, Walleye, Sunshine Bass, Spotted Bass
The lake
Lake Red Rock covers 8,619 acres in Iowa, across Marion County. It is a lake: the deepest figure on record is 20 feet (6.1 m), as published by Webster, K.E., McCullough, I.M., Soranno, P.A. LAGOS-US DEPTH v1.0, EDI, doi:10.6073/pasta/64ddc4d04661d9aef4bd702dc5d8984f (CC BY 4.0); Cheruvelil et al. LAGOS-US LOCUS v1.0 (EDI), a figure without a map of the bottom. Our records hold 7 species for this water.
5 target fish, led by Northern Pike
- Northern Pike — Feeding water: 50–75°F.
- Largemouth Bass — Feeding water: 65–85°F.
- Walleye — Feeding water: 50–75°F.
- Sunshine Bass — Feeding water: 70–80°F. Nonnative.
- Spotted Bass — Feeding water: 65–80°F.
Also recorded here: Silver Carp, Bighead Carp.
Stocking: 97,634,181 fish, 2012–2025
Iowa DNR records list 97,634,181 fish released into this water from 2012 to 2025.
- Walleye: 88,022,086 in 2012–2025
- Northern Pike: 384,391 in 2012–2022
- Largemouth Bass: 30,851 in 2016–2024
One more species on the stocking list.
Depth and bottom
Deepest figure on record: 20 ft (6.1 m), as published by Webster, K.E., McCullough, I.M., Soranno, P.A. LAGOS-US DEPTH v1.0, EDI, doi:10.6073/pasta/64ddc4d04661d9aef4bd702dc5d8984f (CC BY 4.0); Cheruvelil et al. LAGOS-US LOCUS v1.0 (EDI). We hold no survey map of this bottom, so we show no depth bands. We hold 17 depth contour lines for this water.
Water and conditions
Our water temperature readings average 76°F; they do not cover the whole year, so this is not a yearly average. pH averages 7.9. These readings span 2017–2024.
What is hard here
Wind is the limit, not the fish: 8,619 acres of open water build a short steep chop, and there is no shelter in the middle.
Where this data comes from
- Iowa DNR — Iowa DNR: depth contours: class A, a survey of the bottom.
- Webster, K.E., McCullough, I.M., Soranno, P.A. LAGOS-US DEPTH v1.0, EDI, doi:10.6073/pasta/64ddc4d04661d9aef4bd702dc5d8984f (CC BY 4.0); Cheruvelil et al. LAGOS-US LOCUS v1.0 (EDI) — LAGOS-US DEPTH v1.0: Lake depth for 17,675 lakes in the conterminous U.S.: class B, a depth figure measured and published by an agency, without a bottom map.
