Arizona Atlas of Historical County Boundaries
John H. Long, Editor; Peggy Tuck Sinko, Associate Editor; Emily Kelley, Historical Compiler; Laura Rico-Beck, GIS Specialist and Digital Compiler; Peter Siczewicz, ArcIMS Interactive Map Designer; Robert Will, Cartographic Assistant
Copyright The Newberry Library 2007
ARIZONA (N.M. Territory, extinct)
Arizona Territory (non-county area)
BERNALILLO (N.M.)
CASTLE DOME (proposed)
DOŅA ANA (N.M.)
DOŅA ANA (proposed)
EWELL (proposed)
MESILLA (proposed)
New Mexico Territory (non-county area)
PAH-UTE (extinct)
RIO ARRIBA (N.M.)
SAN JUAN (N.M. Territory, original, extinct)
SANTA ANA (N.M. Territory, extinct)
SOCORRO (N.M.)
TAOS (N.M.)
VALENCIA (N.M.)