"Photoimagery rectified by optical scanning from color infrared aerial photograph taken December 12, 1979, by the Dirección General de Geografía del Territorio Nacional (DGGTN), Mexico D.F., Mexico." Includes location map and index to adjoining sheets.
Scan
Extent
Scale 1:25,000
Sheets 44 x 67 cm, or smaller
c (W 117°07ʹ30ʺ--W 114°42ʹ30ʺ/N 32°42ʹ30ʺ--N 32°20ʹ00ʺ).