Yes, boondocking, also known as dispersed camping or dry camping, is legal in Alabama on public lands, such as national forests and some state lands. One of the popular places for boondocking in Alabama is the Talladega National Forest, where you can camp for free outside of designated campgrounds. However, it's essential to follow the rules and regulations set by the managing agencies, such as staying within a certain distance from roads and water sources, and adhering to the "Leave No Trace" principles. Additionally, some privately owned lands on Hipcamp may also allow boondocking, but you should always check with the landowner and obtain permission before camping.