Impacts of Climate Change and Land Use on the Southwestern United States
Erosion in the Rio Puerco: Geography and Processes

Rio San Jose Catchment Figure

Arroyo Chico Catchment Figure

Peak flows at two stream gages (on the Rio San José below Grants, NM, and on the Arroyo Chico just above its confluence with the Rio Puerco) exhibit a difference of flood amplitudes of about a factor of 10. The basins are nearly of the same size and mean elevation.
Peak flow data for these stations are available from USGS at URLs: and

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