Geologic map of the Santa Ana Pueblo quadrangle, Sandoval County, New Mexico

The Santa Ana Pueblo quadrangle is located in the northern part of the Albuquerque basin, which is the largest
basin or graben within the Rio Grande rift. The quadrangle is underlain by poorly consolidated sedimentary
rocks of the Santa Fe Group and is dominated by Santa Ana Mesa, a volcanic tableland underlain by basalt flows
of the San Felipe volcanic field. The San Felipe volcanic field is the largest area of basaltic lavas exposed
in the Albuquerque basin. The structural fabric of the quadrangle is dominated by dozens of generally north
striking, east- and west-dipping normal faults associated with the Neogene Rio Grande rift.