Coahuila

Coahuila, formally Coahuila de Zaragoza, officially the Free and Sovereign State of Coahuila de Zaragoza, is one of the 31 states of Mexico. The largest city and state capital is the city of Saltillo; the second largest is Torreón and the third largest is Monclova (a former state capital); the fourth largest is Piedras Negras; and the fifth largest is Ciudad Acuña.

1847 battle of the Mexican–American War

airport located at Ramos Arizpe in the state of Saltillo in Mexico

geological formation in Mexico and the United States of America