Arizona SB 1070 is a 2010 legislative Act in the U.S. state of Arizona that at the time of passage in 2010 was the broadest and strictest anti–illegal immigration measure passed in the United States. Also known as The Support Our Law Enforcement and Safe Neighborhoods Act.

Historians have speculated about the possible location of Aztlan and tend to place it either in northwestern Mexico or the southwest US, although there are doubts about whether the place is purely mythical or represents a historical reality.