Indian inhabitants laid out the basic travel routes in central Washington's Grand Coulee country probably 10,000 to 12,000 years ago. In the early 1800s, the semi-nomadic Sinkiuse and other Native Americans continued to use these routes through the spectacular coulees. Following in their footsteps came a host of white explorers and frontiersmen - at first in a trickle, then in greater numbers by mid-century. Forgotten Trails is a compilation of the...