The water for the Chena River comes from surface run off water like rain and snow. The Chena River empties into the Tanana River. He came into our class and spent an hour and a half showing us huge maps of the interior of Alaska. He answered our questions about where did the Chena River start and end and about what fish live in the river. It was great having him visit us.
Rivers are powerful forces that can change the shape of the land.
They can carry dirt and rocks and deposit that stuff in other places. This is erosion . Valleys are formed when rivers erode the land. Rivers in our valley were not always in the same place. When rivers change their path, they change their course.