Colorado's Cache la Poudre River flows east out of Rocky Mountain National Park and through a canyon northwest of Fort Collins. Along the way, like any other Western river, it is diverted to water croplands and fill washing machines. It is a magnet for rafters and fisher-folk, and the people of Fort Collins regard it as an urban treasure as it runs through the heart of their town. The Poudre -- Colorado's only river with a designated wild and scenic stretch -- is also one of the few rivers in the state that has no main-stem dams. Yet it was named the third most endangered river in the United States by American Rivers in 2008, because, like all Western rivers, it is eyed greedily by water providers on the hunt for more acre-feet. Currently, the developers of three reservoir projects want the Poudre's water. Gary Wockner of Save Our