Free/dispersed only. Some nice private sites if you’re willing to drive in a few miles, otherwise it gets really crowded at the head of the road. There are a number of offshoots that lead to private, secluded spots, some with great views. It’s all close to town, hardware, gas, stores. Castle Rock access point to Lake Havasu and Colorado River is close by. No amenities whatsoever but there is decent cell service.