The federal government on Wednesday switched ownership of hundreds of acres of land in Arizona to the U.S. Navy, and it was designated as the future site of a special militarized area for U.S. border ...

WASHINGTON — A long sliver of federal land along the U.S.-Mexico border that President Donald Trump is turning over to the Department of Defense would be controlled by the Army as part of a base ...

Thousands of migrants have crossed the U.S.-Mexico border onto Tohono O'odham Nation land since Saturday — a volume that's extremely rare in this remote Arizona region of the borderlands.

Calling all history buffs! Step back in time at one of these significant sites in each state, from Revolutionary War ...

A crowd of activists, politicians, journalists and New Mexico Department of Transportation employees gathered on the side of ...

On the border of New Mexico is an unspoiled ghost town along Route 66, which offers visitors a glimpse of everyday life on ...

Mary Riseley walked through glowing rows of luminarias looking for her mother’s name at a vigil for New Mexico downwinders Wednesday, 80 years to the day after the ...

At the height of the Spanish empire, the Manila galleon turned Acapulco into a hub for the entire world's trade networks.