The U. S. Geological Survey's Gravity Program in Arizona, Colorado, New Mexico, and Utah

Most of the gravity surveys by the U. S. Geological Survey in Arizona, Colorado, New Mexico, and Utah have been conducted in support of programs of regional geophysical investigations, geologic mapping, and water resource investigations initiated by the Geological Survey. Gravity data have also been obtained through cooperative programs with other Federal agencies, especially the Atomic Energy Commission, Bureau of Reclamation, and Advanced Research Projects Agency. Techniques of collection and reduction of the gravity data are similar to those described by Oliver [1965] elsewhere in this symposium. Areas of published gravity coverage are shown in Figure 1 and are numerically keyed to the References. Areas of unpublished gravity coverage are listed in Table 1.