SMITHSONIAN JOURNEYS EXPERTS
Sidney Horenstein is a geologist and recently retired Coordinator of Environmental Public Programs at the American Museum of Natural History. He also served as an adjunct lecturer in geology at the City University of New York for 25 years and is currently the natural history consultant to the Bronx County Historical Society. He also lectures at the AMNH on a variety of natural history subjects. He has been involved with expeditions since 1985 and has led trips to the Americas, Europe, the Mediterranean, Asia, the Arctic, and North Africa.