SPRINGFIELD – Morrison-Rockwood State Park in Whiteside County will be closed to the public June 23-24, 2026 while staff apply aquatic herbicide treatment at Carlton Lake.
The treatment will focus on eliminating invasive vegetation and will improve water recreation for anglers, boaters and kayakers. Removing invasive species will improve fish habitat and increase lake access for bank fishing.
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Public access to the park will be restricted during this time, and camping will not be available. For additional information please contact the site office at 815-772-4708.
Morrison-Rockwood State Park is located at 18750 Lake Road in Morrison. The park attracts more than 400,000 visitors annually for activities such as boating, fishing, hunting, hiking and horseback riding.
About IDNR
The Illinois Department of Natural Resources was established in 1925 as the Illinois Department of Conservation, bringing under one umbrella oversight of fish and game, forestry, public works, and lakes. Today, IDNR’s work encompasses management of about 400 sites across Illinois, including state parks and historic sites; wildlife, fisheries, forestry, and natural heritage; Lake Michigan water allocation and coastal management; conservation police; mines and minerals; oil and gas; issuance of licenses, permits, and numerous grants; the World Shooting and Recreational Complex in Sparta; and the Illinois State Museum. Visit https://dnr.illinois.gov and follow us on Facebook, YouTube and LinkedIn.
