Rio Puerco online - from U.S. Geological Survey global change research program
Erosion in the Rio Puerco: Geography and Processes
The Rio Puerco Arroyo Cycle and the History of Landscape Changes
The Arroyo Problem in the Southwestern United States
History of Streamflow and Suspended-Sediment Collection in the Rio Puerco Basin, New Mexico
Tree-ring web pages (not really about the Rio Puerco, but great source on dendrochronology and climate history)
Modeling channel processes
Debris-flow
hazards in the United States
Debris-flow
hazards in the Blue Ridge of Virginia