The River Mile is a network of educators and students collaborating with partners to do real-world science and enhance the health of the Columbia River watershed and beyond, exploring the essential question:

“How do relationships among components of an ecosystem affect watershed health?”

TRM is a participant-driven approach to learning about, researching and exploring the health of the Columbia River watershed and beyond. Participants share best practices, lessons learned, examples, links to resources, and real-world scientific data.

Students and teachers engage in science education outdoors and explore scientific practices through real-world resource projects. Groups become intimately familiar with their outdoor classroom by spending time in the field investigating and researching their section of the watershed.  Learn More »


Idaho Students Discover Invasive Crayfish

Classroom citizen scientists discover red swamp crayfish Procambarus clarkii (Girard, 1852) from northern Idaho, United States
Check out what students are doing in Idaho and why it is so important!


Community Virtual Gatherings

Click here to learn about our Community Gatherings and see recordings of past events.


Did you miss it?

Lake Roosevelt Forum Salmon
Reintroduction Webinar


Free Virtual On-Demand Training

Virtual On Demand Crayfish Observation Training to prepare you to participate in The River Mile Network Crayfish Study. Learn More »

Support the Network!

Donate for Washington Projects
Purchase Crayfish Clothing