TY - RPRT TI - Spatial variability of sediment erosion processes using GIS analysis within watersheds in a historically mined region, Patagonia Mountains, Arizona AU - Laura M. Brady AU - Floyd Gray AU - Craig A. Wissler AU - D. Phillip Guertin PY - 2001 DO - 10.3133/ofr01267 UR - https://pubs.usgs.gov/publication/ofr01267 ID - ofr01267 ER -