Once, aeons ago, the Appalachians were of a scale and majesty to rival the Himalayas--piercing, snow-peaked, pushing breathtakingly through the clouds to heights of four miles or more. New Hampshire's Mount Washington is still an imposing presence, but the stony mass that rises from the New England woods today represents, at most, the stubby bottom one-third of what was ten million years ago. That the Appalachian Mountains present so much more modest an aspect today is because they have had so much time in which to wear away. The Appalachians are immensely old--older than the oceans and continents (at least in their present configurations), far, far older than most other mountain chains, older indeed than almost all other landscape features on earth. When simple plants colonized the land and the first creatures crawled gasping from the sea, the Appalachians were there to greet them.