The Mexico–United States border is an international border separating Mexico and the United States, extending from the Pacific Ocean in the west to the Gulf of Mexico in the east. The border traverses a variety of terrains, ranging from urban areas to deserts. The Mexico–U.S. border is the most frequently crossed border in the world with approximately 350 million documented crossings annually. It is the tenth-longest border between two countries in the world.
The vast majority of the current border was decided after the Mexican–American War (1846–1848). Most of the border is settled on the Rio Grande River on the border of Texas and northeastern Mexico. To the left lies San Diego, California and on the right is Tijuana, Baja California. The building in the foreground on the San Diego side is a sewage treatment plant built to clean the Tijuana River.
U.S. Border Patrol at Algodones Sand Dunes, California. The fence on the U.S.–Mexican border is a special construction of narrow, 4.6 m (15 ft) tall elements, that are movable vertically. This way, they can be lifted on top of the ever shifting sand dunes.
Border Patrol patrolling the Rio Grande in an airboat in Laredo, Texas
The start of the border fence in the state of New Mexico – just west of El Paso, Texas
Chihuahua, officially the Estado Libre y Soberano de Chihuahua, is one of the 31 states which, along with Mexico City, comprise the 32 federal entities of Mexico. It is located in the northwestern part of Mexico and is bordered by the states of Sonora to the west, Sinaloa to the southwest, Durango to the south, and Coahuila to the east. To the north and northeast, it shares an extensive border with the U.S. adjacent to the U.S. states of New Mexico and Texas. The state was named after its capital city, Chihuahua City; the largest city is Ciudad Juárez.
Cliff dwellings at Las Jarillas Cave, part of the Cuarenta Casas archeological site.
Antonio de Deza y Ulloa the founder of Chihuahua, Chihuahua
An 18th century colonial aqueduct built in Chihuahua City