: A set of plates related to geohydrology and water-level measurements delivered as a 39.0 MB zipped PDF collection .
: A major environmental study regarding noise abatement for the McClellan-Palomar Airport in San Diego County is listed at 39.0 MB. (39.0 MB)
: A specific set of 12 plates (Plates 1-12) provided as a single 39.0 MB PDF for the report titled " GIS-Based Identification of Areas with Mineral Resource Potential in Alaska ". : A set of plates related to geohydrology