The Longest International Land Borders Quiz

Answer: Rio Grande

The Mexico-United States border is the 10th longest in the world. In 2016 the El Paso-Juarez metropolitan area was the largest on this border with a population of almost three million people. In total four U.S. states (California, Arizona, New Mexico, and Texas) border Mexico whereas six states of Mexico (Baja California, Sonora, Chihuahua, Coahuila, Nuevo León, and Tamaulipas) border the United States.

Answer: Kazakhstan

At the time that the border was demarcated in 1930 it separated two USSR administrative territories: Kazak ASSR and Russia. There are numerous border crossings between Kazakhstan and Russia with some of them being open only to citizens of those nations. One of the larger cities close to the border is Kazakhstan's Petropavl which is also located along the Trans-Siberian Railway.

Answer: There are no dedicated border crossings.

In contrast to the western border which has no border crossings, the China-Russia eastern border has 26 including three with railway lines. The western border between the two nations lies in a high-altitude area where roads are not safe. Not surprisingly, China and Russia lead the world in their total length of land borders at 22,147 km (13,762 mi) and 20,017 km (12,438 mi) respectively.

Answer: Yukon and Alaska

In total the state of Alaska has a border with Canada of 2,475 km (1,538) which is shared nearly 50-50 with Yukon and British Columbia. The Canada-U.S. border is considered an undefended border in that there is not a significant military presence but it is still considered illegal for civilians to cross outside of border control.

In total there are more than 100 border crossings between the U.S. and Canada.

Answer: Tierra del Fuego

Translated from the Spanish to mean "Land of Fire", Tierra Del Fuego is the 29th largest island in the world. About 3/5ths of its area lies in Chile with the remainder in Argentina. Much of the border between Argentina and Chile is occupied by the Andes while the northern portion ends in the Atacama Desert.

Answer: Enclave

In 2015 there were 111 Indian enclaves in Bangladesh and 51 Bangladeshi enclaves in India. Essentially the perimeter of all of these enclaves contributes toward the total border between the two countries. The nations of San Marino, Vatican City, and Lesotho are some of the most well-known enclaves.

Answer: Bolivia

The Brazil-Bolivia border's southern portion begins in the Pantanal which is the largest tropical wetland area in the world. The border then runs northwest through cities, deserts, and forests and eventually ends in the Amazon rainforest. In addition to its border with Brazil, Bolivia also borders Paraguay, Argentina, Chile, and Peru.

Answer: Mongolia

Mongolia is a large, landlocked nation bordering only two countries. All of Mongolia's southern border and its eastern border are with China. In December 2016 this border was in international news after China closed the Gants Mod border crossing in response to the Dalai Lama's visit to Ulan Bator. This caused hundreds of mining trucks to be stuck in Mongolia.

Answer: Line of Actual Control

There were many disputes between China and India over exactly where the border should be. In 1962 fighting broke out between the nations in the Himalayan area around the Line of Actual Control. Prime Minister Nehru later commented that he didn't know why there was so much turmoil over an area in which "not even a blade of grass grows".

Answer: Tripoint

There are an estimated 176 international tripoints. Russia has 11 tripoints whereas the continent of North America only contains two. In 1994 in Ulan Bator an agreement was made between Mongolia, China, and Russia to determine the location of their two tripoints.