The U.S.-Mexico border is a 1,954-mile international boundary separating the United States and Mexico. It stretches from the Pacific Ocean in the west to the Gulf of Mexico in the east, crossing various terrains, including deserts, rivers, and urban areas. This border is significant for trade, culture, and immigration. It features several official ports of entry where people and goods can cross legally. The border is also a focal point for discussions on immigration policy and security, as it plays a crucial role in the movement of individuals between the two countries.