Texas Caves (Louise Lindsey Merrick Natural Environment Series)Texas has about three thousand known, explored caves, ranging in size from small crawlways to huge caverns. Most of these caves, however, are generally restricted to exploration by trained, experienced cavers, geologists, and biologists. TexasCaves introduces this seldomseen world, providing basic cave geology and biology, a description of the seven show caves that have been opened and developed for public visiting, and information on state