TY - RPRT TI - An evaluation of sand and gravel resources in and near the Prescott National Forest in the Verde Valley, Arizona, with a section on evaluation of sand and gravel resources using selected engineering variables AU - Leslie J. Cox AU - James D. Bliss AU - Robert J. Miller PY - 1999 DO - 10.3133/ofr99127 UR - https://pubs.usgs.gov/publication/ofr99127 ID - ofr99127 ER -