In the sale you will find especially cheap items or current promotions.
Want to part with books, CDs, movies or games? Sell everything on momox.com
This book highlights some of the most difficult and persistent exploration ever undertaken in the United States - in Burnsville Cove, a small limestone valley in west-central Virginia - while at the same time reviewing the scientific discoveries made in the area's 116 km of caves in the course of 50 years. Overall, the book offers a unique combination of exploration and science by a conservation organization specifically dedicated to the preservation and study of the caves.