It would depend at which latitude are you measuring Mexico's width. If you measure it between the westernmost (Guadalupe Island, 29°4'N 118°26'W) and its easternmost (Isla Mujeres, 21°11'N 86°42'W) points, Mexico's width would be 3337 kilometers (2073 miles) wide.
The US-Mexican Border is the international border between the United States of America and the country of Mexico. Most of this 3,141 Kilometers (1,952 miles) border is defined by the course of the Rio Grande River (Rio Bravo del Norte, as it is known in Mexico) which runs from Ciudad Juarez-El Paso into the Gulf of Mexico, close to the cities of Matamoros-Brownsville.
The four US states that border Mexico, with their respective border lengths are, from west to east:
Width (east to west distance) can vary from 250 Km (155 miles) down to 45 Km (28 miles).
To the US-Mexico border? Northern Mexico is close to the border.
when did the US close the border beween Mexico and the US
Yes, Mexico does border the U.S
US-Mexico border ("Frontera Mexico-Estados Unidos").
Mexico-US Border
None. Mexico's border touches New Mexico's state limit (and US border).They share a common border.
US-Mexico border
Tijuana is right at the US-Mexico border.
The Gulf of Mexico.
The US-Canada border qualifies as such:US-Mexico border length: 3,145 kilometers (1,954 miles)US-Canada border length: 11,366 kilometers (7,063 miles)
The Rio Grande river is a part of the border between the US and Mexico.
The border is just there, nobody "paid" for it. Mexico sees no need to enforce the border but the US tries to prevent illegal crossings from Mexico, so if you are asking about who pays to enforce immigration laws across the border, then it is 100% the US.