(Duck Creek, 93') across Duck Creek SE of Seaton, Ohio Grove Township, Mercer County, IL. 160th St. S. 0.75 miles from jct with 20th Av. E. of Seaton, E. on 15th Av. 3.3 miles, S. on 192nd St. 1.3 miles to the bridge. (N41 04.278 W90 43.271) Photos 10-22-10.