Ash Creek is a prime fishing spot in California known for its rainbow trout, brook trout, and brown trout. Anglers can also catch smallmouth bass and catfish. Nearby activities include hiking, biking, and camping. Fishing tips include using small lures and flies for the trout and fishing in the deeper pools. The best time to visit is from April to October, with temperatures averaging around the mid-70s in the summer months. It's important to note that the creek can be crowded during peak season, so plan accordingly.