ocr: Here, between the Black and Ma Rivers and east of Dien Bien Phu, our intrepid group treks for four days through Hmong, Tai, and Muong villages, meeting a people whose customs and traditions have remained largely untouched by outside influences. Many hill- tribes still practice spirit worship and animism. They are also skilled artisans, andwe will have a chance to admire their superb handiwork, including silver jew- elry, embroidery, and handwo ven textiles. We overnight in their villages, absorbing not only the beauty of our surroundings, but the way of life of these invin cible mountain peopl ...