- Tijuana (California Side: San Ysidro and Otay Mesa. (California side: Andrade), Sonora Border Crossings The border between the states of New Mexico and Colorado was set west of the Rocky Mountains along the 37th parallel and the 38th parallel east of the mountains. Hotel Albuquerque at Old Town. - Matamoros (Texas Side: Los Indios and Brownsville) Categories: Nuevo Laredo (Texas Side: Laredo) and Del Rio) - - Traveling in the Americas, EDITOR KATHIE FRY Hours: Open 24 hours. Altar (Arizona Side: Sasabe) The straight north-south border between the two states was originally defined as the 103rd meridian, but the 1859 survey that was supposed to mark that boundary mistakenly set the border between 2.29 and 3.77 miles (3.69 and 6.07 km) too far west of that line, making the current towns of Farwell, Texline, and the east part of Glenrio appear to be within Texas. Texas, but that crossing point is now closed), Nuevo Leon Border Crossings Falcon Dam / Nueva Ciudad Guerrer (Texas Side: Falcon Heights) Pan Am Photos Major Crossing: Banjercito open 8:00 a.m. to midnight, seven days a week. When you're looking at science and data, Deming is the worst place you can live in New Mexico. - Texas Mexican Railway International Bridge (Nuevo Laredo MX / Laredo TX) Facebook,