Thanks to Dave Woehr, OCVN, for the following link which describes the 3 venemous (not poisonous - difference is explained) snakes in Ohio...

http://www.wideopenspaces.com/venomous-snakes-ohio-video/?utm_source=Sailthru&utm_medium=email&utm_term=Oh%20-%2025%25&utm_campaign=WOS_newsletter_7.18%20-%20OH