Sig Lonegren has been a student of sacred enclosures since the late 1960s and he has a Masters degree in Sacred Space, the study of pre-Protestant Reformation spiritual centers. He is the author of the "Earth Mysteries Handbook: Wholistic Non-intrusive Data Gathering Techniques, " in which he discusses sacred geometry, archaeoastronomy and dowsing, and "Spiritual Dowsing, " a book that explores dowsing both as a tool for locating earth energies found at ancient sacred sites, and for health and healing. Sig is a past Trustee of the American Society of Dowsers, and was head of their Dowsing School for several years. While his home is in Vermont, USA, he spends time each year in the heart of King Arthur's Avalon, at Glastonbury, England. For the past four years Sig has been contributing to Earth Mystery gatherings with people in Britain. These week long encampments, put together by a group called OakDragon, focus on specific topics like music and dance, astrology, healing, creativity, ceremony, and the study of the experience of ancient Britain.