ROCK ISLAND, Ill. – The U.S. Army Corps of Engineers and The Nature Conservancy invite the public to attend an open house for the Environmental Management Program’s Emiquon East Habitat Rehabilitation and Enhancement Project on April 16 between 5 and 7 p.m. at the Dickson Mounds State Museum, 10956 N Dickson Mounds Rd, Lewistown, Ill.