Garitas or Retenes (singular: retén) are federal inspection stations operated by the Mexican government. They are officially known as a "Garita de Revisión." They are usually located within 50 kilometers of a national border (with the United States, Belize, or Guatemala) and they function as immigration checkpoints, where documents and cargo are to be inspected.
The United States Border Patrol operates a similar series of checkpoints. These are also referred to as garitas by the Latin American community.
List of Garitas in Mexico
Garitas along the Mexico-U.S. Border (listed in order from West to East)
Garitas along the Mexico–Guatemala Border (listed in order from South to North)
Garitas in the Yucatán Peninsula
References
Garitas Wikipedia(Text) CC BY-SA