A lecture about river system and locks & dams, will be presented at the Ohio River Museum, on Marietta, OH on April 6, 3:00-4:30 pm. The presentation entitled "Oh Dams! The Story of the Muskingum River Locks and Dams" will discuss the lock and dam system running from Zanesville to Marietta.

For more information, visit http://ohsweb.ohiohistory.org/calendar/2008apr.cfm or call the Campus Martius Museum at (740) 373.3750, 800-860-0145 or e-mail averhoff@ohiohistory.org.