page_title: Mexico–United States border
hierarchical_section_title: Mexico–United States border
caption_attribution_description: English: Contrasts between one country and another the quality of public administration. A small fence separates densely-populated Tijuana, Mexico, right, from the United States in the Border Patrol's San Diego Sector. Construction is underway to extend a secondary fence over the top of this hill and eventually to the Pacific Ocean. Español: Contrasta entre un país y otro la calidad de la administración pública. Una cerca pequeña separa Tijuana, México densamente poblada, a la derecha, de Estados Unidos en el Sector de San Diego de la Patrulla Fronteriza. Se construye una cerca secundaria que irá encima de esta colina y al fin seguirá al océano Pacífico. Deutsch: Kontraste zwischen einem Land und einer anderen Qualität der öffentlichen Verwaltung. Ein kleiner Zaun trennt das dicht bevölkerte Tijuana in Mexiko, im Bild auf der rechten Seite zu sehen, von den Vereinigte Staaten von Amerika in der Region um San Diego. Der Grenzschutz mit weiteren Zäunen wird bis zum Pazifischer Ozean ausgebaut. Português: Contrastes entre um país e outro a qualidade da administração pública. Um muro baixo separa a densamente povoada cidade de Tijuana, no México, à direita, dos Estados Unidos no sector fronteiriço de São Diego. Está em curso a construção de uma vedação secundária que se estenderá do cimo da colina e que deverá estender-se até ao Oceano Pacífico. Français&#160;: Contrastes entre un pays et un autre la qualité de l'administration publique. Une petite clôture sépare populeux Tijuana, Mexique, à droite, des États-Unis, dans le Secteur de San Diego de la Patrouille Frontalière. La construction est en cours afin de rallonger une clôture secondaire par-dessus de cette colline et finalement à l'océan Pacifique. Suomi: Yhdysvaltain ja Meksikon välinen raja. Kuvassa vasemmalla Yhdysvaltain Kaliforniaa ja oikealla Meksikon Tijuanaa.
context_page_description: 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–United States 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 total length of the continental border is 3,145 kilometers. From the Gulf of Mexico, it follows the course of the Rio Grande to the border crossing at Ciudad Juárez, Chihuahua, and El Paso, Texas. Westward from El Paso–Juárez, it crosses vast tracts of the Chihuahuan and Sonoran deserts to the Colorado River Delta and San Diego–Tijuana, before reaching the Pacific Ocean.
context_section_description: The Mexico–United States border (Spanish: frontera México–Estados Unidos) 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–United States 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 total length of the continental border is 3,145 kilometers (1,954 mi). From the Gulf of Mexico, it follows the course of the Rio Grande (Río Bravo del Norte) to the border crossing at Ciudad Juárez, Chihuahua, and El Paso, Texas. Westward from El Paso–Juárez, it crosses vast tracts of the Chihuahuan and Sonoran deserts to the Colorado River Delta and San Diego–Tijuana, before reaching the Pacific Ocean.
caption: 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.
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