Clinton County
http://www.clintoncountypa.com/

Lycoming County
http://www.lyco.org/

Union County
http://www.seda-cog.org/union/site/default.asp

Northumberland County
http://www.northumberlandco.org/

Lycoming College Biology Department - Clean Water Institute
http://www.lycoming.edu/biology/cwi/

Merrill Linn Conservancy
http://www.linnconservancy.org/

National Park Service - River and Trails Program
http://www.ncrc.nps.gov/programs/rtca/

Susquehanna Greenway
http://www.susquehannagreenway.org/