In addition to the recreational use of Clear Lake and Indian Valley Reservoir there are numerous trail-heads, parks and campgrounds, including the Bear Valley wildflower hotspot. Bear Creek and Cache Creek run in a scenic canyon along State Route 16 in Colusa and Yolo county, including the "Cache Creek Regional Park". Cache Creek provides white-water rafting, both in the spring when it is flooded, and through the summer using the agricultural water flow. The entire area south of Route 20 and west of Route 16 is a wildlife preserve, hosting two herds of Tule Elk.