The Guatemala–Honduras adjacency line is a disputed international boundary separating

Guatemala Guatemala ( ; ), officially the Republic of Guatemala ( es, República de Guatemala, links=no), is a country in Central America. It is bordered to the north and west by Mexico; to the northeast by Belize and the Caribbean; to the east by H ...

on the north and west from

Honduras Honduras, officially the Republic of Honduras, is a country in Central America. The republic of Honduras is bordered to the west by Guatemala, to the southwest by El Salvador, to the southeast by Nicaragua, to the south by the Pacific Oce ...

on the south and east. The border dispute and being adjudicated in the

ICJ The International Court of Justice (ICJ; french: Cour internationale de justice, links=no; ), sometimes known as the World Court, is one of the six principal organs of the United Nations (UN). It settles disputes between states in accordanc ...

as of 2019. Its length is . It is the third longest border of Guatemala after the borders that separate that country from

Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...

and

Belize Belize (; bzj, Bileez) is a Caribbean and Central American country on the northeastern coast of Central America. It is bordered by Mexico to the north, the Caribbean Sea to the east, and Guatemala to the west and south. It also shares a wate ...

. For Honduras, it is the shortest border, coming after those with

Nicaragua Nicaragua (; ), officially the Republic of Nicaragua (), is the largest country in Central America, bordered by Honduras to the north, the Caribbean to the east, Costa Rica to the south, and the Pacific Ocean to the west. Managua is the cou ...

and

El Salvador El Salvador (; , meaning " The Saviour"), officially the Republic of El Salvador ( es, República de El Salvador), is a country in Central America. It is bordered on the northeast by Honduras, on the northwest by Guatemala, and on the south b ...

. The border begins at the mouth of the

Motagua River The Motagua River () is a river in Guatemala. It rises in the western highlands of Guatemala where it is also called Río Grande, and runs in an easterly direction to the Gulf of Honduras. The final few kilometres of the river form part of the ...

in the

Gulf of Honduras The Gulf or Bay of Honduras is a large inlet of the Caribbean Sea, indenting the coasts of Belize, Guatemala, and Honduras. From north to south, it runs for approximately 200 km (125 miles) from Dangriga, Belize, to La Ceiba, Honduras. ...

, then proceeds upstream. It continues towards the southwest, following several straight lines between geographic landmarks, divides between watersheds, and rivers and streams to its end at the tripoint with El Salvador at the summit of the

Montecristo Massif The Trifinio Fraternidad Transboundary Biosphere Reserve is a transboundary protected area located where the borders of El Salvador, Guatemala and Honduras meet (thus the prefix ''tri'' in its name). It protects the Montecristo massif and its cloud ...

. The border was fixed in 1933 by an arbitration tribunal in the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

after Nicaragua and Guatemala signed an arbitration treaty in 1930. A demarcation commission headed by Sidney H. Birdseye conducted an areal survey and erected 1,028 boundary markers between 1933 and 1936.

References

Borders of Guatemala Borders of Honduras International borders {{Honduras-stub