Few people are aware that C&O Canal, NHP may hold one of the finest collections of historic stone masonry culverts to be found in this nation. This history / field guide and album portrays over 150 treasures hidden beneath the towpath: why they are special, why they are being lost, and what we can do to save them. Includes nearly 500 photos and 17 line illustrations.
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $20. ThriftBooks.com. Read more. Spend less.