In lower right margin: [Plate] 121., Library's copy received with note indicating map from either Gray's Atlas of the United States or O.W. Gray & Son's National Atlas. Philadelphia, [1877?]., Map of "Mexico" (scale 1:7,920,000) on verso., and Pinal Co. appears in separately colored area, bounded by dashed lines, between Maricopa and Pima counties; differs from earlier 1877 version in no longer showing separately colored, rectangular area in eastern Maricopa and Pima counties.
Publisher:
s.n.?,
Subject (Geographic):
Arizona--Maps, Mexico--Maps, and New Mexico--Maps
Subject (Name):
Gray, Ormando Willis. Gray's atlas of the United States and O.W. Gray & Son. National atlas