The following questions (1-10) are based on the Army Corps of Engineers Mississippi River Maps (Cairo to the Gulf) and the Light List.
At 0825 on 08 March, you get underway from the River Cement Co. (173.0 AHP), enroute The Slay Warehousing docks (179.0 UMR) in St. Louis, MO, with a tow of eight barges carrying cement.
What is the distance from the River Cement Co. Dock to the mouth of the Ohio River?