The Origins of Hot Stone Massage
Hot stones warmed by fire were used by Native Americans to treat aching muscles, but the modern revival of hot stones in massage is generally credited to Mary Nelson, a native of Tucson, Arizona.
She trademarked her style of hot stone massage, called LaStone Therapy, which has a Native American spiritual component and requires training and certification.
Most spas offer their own versions of hot stone massage (they might call it lava stone massage, river rock massage, warm stone massage and so on.) A hot stone massage, however, takes a lot of skill and sensitivity on the part of the therapist.