I was searching for info on water levels for the Ashtabula River and found a link to this club, the Ohio Historical Canoe Route Association. Looks like they paddle in NE OH, and have an upcoming trip on the Cuyahoga.
Always good to know about more paddling opportunities!
http://ohcra.org/default.htm
Steve Z
PS never did find any gauge correlations for Ashtabula River - anyone have any info?