Both the Confederate and Union governments asserted ownership and territorial claims over New Mexico Territory at the start of the American Civil War in 1861. Map of the United States and Mexico ...

19th-century map showing the immense territory that previously belonged to Mexico, including what are today roughly the U.S. states of California, Nevada, Utah, Arizona and New Mexico. Sheinbaum ...

The wolves’ territory now spreads from near the Utah border west of Montrose, to the Wyoming border north of Walden, to near the New Mexico border outside of Pagosa Springs. The canines also remained ...

A book of New Mexico cattle brands published in 1900. A map showing the New Mexico Territory when it reached all the way to California.