Where the river flows through Solvang, long-standing pools are formed and riparian habitat supports unique flora and fauna in the system strikingly different from the surrounding valley and hills. Here we look at the geology of the watershed that extends 90 miles through the full catchment. The geology of erosion including material dispersion and local rock formation can be studied here. The steelhead restoration project is a part of the history of this river system that includes the story of the migratory oceangoing fish and the conservation efforts to maintain their habitat. We usually see migratory and residential birds. Short trails provide opportunities for discovering local plants including mule fat, Willow, coyote bush, and Cottonwood.