All Around Generally, watersheds are described as the land that drains water from an area into its waterways such as streams and rivers.
Watersheds are important physical features of the Interior Columbia Basin.
The Scientific Analysis identified 2,500 watersheds in the basin. Watersheds can be large or small, draining a single valley or the entire basin. In this activity, students explore what a watershed is and how it works. Cover with heavy paper or a plastic tarp. Mark the predicted route with a permanent marker.