Oklahoma's Alabaster Caverns is the only gypsum show-cave in the United States and the largest gypsum cave in the world developed for touring. The park s location, being part of a gypsum prairie eco-system, makes many of the species found here quite unique. This beautifully illustrated guide highlights over 140 familiar and unique species found in this unique ecosystem including mammals, birds, reptiles, amphibians, butterflies, trees, shrubs and wildflowers and includes an area map. Laminated for durability, this lightweight, pocket-sized folding guide is an excellent source of portable information and ideal for field use by visitors and residents alike. Made in the USA. ".