"Listening to the River" (LTTR) is a watershed science education project funded by the National Science Foundation. The project aims to deliver watershed education experiences in and around Traverse City, Michigan, and also to develop a model that can be replicated in other locations. Inverness Research was contracted by the "Listening to the River" project to conduct both formative and summative evaluations. Our work began in 2005 when the project received a planning grant, and continued through the life of the project. In this summative report we examine core features of the project's model and its potential for replicability. Our purposes are to provide the funder, NSF, with lessons learned from their investment and also to provide others who are interested in watershed-based science education with our independent perspective on the LTTR model. Appended are: (1) List of Evaluation Activities; and (2) "Listening to the River" Community Guidebook Review. An addendum is included. (Contains 13 footnotes.) [This report was written with the assistance of Laura Stokes.]