Lake Red Rock near Knoxville: Fishing Spots, Seasons and Access

• Overview

  This water sits in Marion County, Iowa. It stands 719 feet above sea level. It covers about 13.5 sq miles, which means weather matters as much as tactics. Some 63 miles of shoreline means conditions can differ from one end to the other. Across our Iowa listings, few waters are bigger. Nearest place of any size is Knoxville, 6.7 miles away. The nearest city of size is Des Moines, 30 miles away. No county line comes close, which keeps the paperwork simple.

• Where to Fish on Lake Red Rock

  Recorded depth comes to 53 ft. Look for where the old bank line still shows under the surface. Draw-down through summer strips the margins, so follow the water out. Marion County records list common carp, flathead catfish and gizzard shad among the fish reported. Read it as a county summary, not a water-by-water list. Fish Lake Red Rock where the bottom changes rather than where it looks deep.

• Seasonal Patterns

  July is the warm end of the year here, averaging about 76°F, while January sits near 21°F. The freeze arrives properly here and holds. Winter fishing happens on the ice here, with open water back around mid March. Expect the water usable from around mid March until roughly mid December. Late spring and early autumn carry the year between them. Lake Red Rock runs to its own calendar within the local pattern.

• Tackle & Baits

  This sits on public land, so access is generally straightforward. You will be walking about half a mile from the nearest car park. Catfish want bait on the bottom: cut bait or worms, a simple running rig, and patience after dark. State or provincial rules still apply whatever the bank status. Keep proof of licence with you rather than in the car. Browns Lake sits 15 miles off and takes the overflow. Nothing on Lake Red Rock should be assumed from this page alone.