Download or read book Minnesota Underground & the Best of the Black Hills written by Doris Green and published by Big Earth Publishing. This book was released on 2003 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explore more than 50 of Minnesota and South Dakota's fascinating caves, mines, sinks, and other underground oddities! This comprehensive guide covers Minnesota iron mines in the north and caves in the south. Also featured are gold mines and caves in the Black Hills of South Dakota, an area that boasts of some of the longer and more magnificent sites in the world. Spelunkers and explorers alike will enjoy this wonderful edition. Book jacket.