Rock Island, IL - The U.S. Army Corps of Engineers Mississippi River Project announces that the Visitor Center at Locks and Dam #15 is inviting guests to a bicycle tour of historic Arsenal Island.This six-mile ride will be held on Saturday, October 13th, from 9:30-11:30am. Historic points of interest include Colonel Davenport’s Home, the old Moline Lock, Arsenal Quarters #1, the Confederate Cemetery, and many more.