Mysterious Arizona canals believed to come from ancient civilization

S.O.T.T: Two things you might not expect to find if you visit the foothills of Mount Graham in eastern Arizona:

1) An elaborate network of "hanging canals" likely built nearly a thousand years ago on steep mesas by long-forgotten ancients.

2) An endearingly eccentric electrical engineer and author who, long before he started trying to solve the archaeological mystery, helped pioneer the world of personal computers.

Nevertheless, on a sunny morning, Don Lancaster wrestles his four-wheel-drive SUV over ruts and boulders into the bajada above the Gila River Valley...read more>>>...