Just across the Rio Grande from West Texas in the state of Coahuila, Mexico, the mountain ranges of the Maderas del Carmen rise majestically. Often called magical or mystical, they have stirred imagination for centuries. Stories of bandits, Indians, ghosts, incredible flora and fauna, cool forests, waterfalls, and vast woodlands filter across the Rio Grande.Many people have dreamed of exploring this vast ecosystem, but few have made the trip. Bonnie McKinney is among the fortunate. In 2001 McKinney and her husband, Billy Pat McKinney, moved to the Carmens to manage the large conservation...