Glenn Kreisberg Glenn Kreisberg is an author, outdoor guide, and radio engineer, who researches archaeoastronomy and landscape archaeology in the Hudson Valley and Catskill Mountains of New York. His books include Mysteries of the Ancient Past, Lost Knowlege of the Ancients, and Spirits in Stone. He served two terms as vice president of the New England Antiquities Research Association (NEARA) and studied archaeoastronomy at SUNY and archaeoacoustics on Malta. He is co-founder of the non-profit Overlook Mountain Center (www.overlookmountain.org) in Woodstock, NY, where he lives with his wife and two teenage children. Read More Read Less