List of Sets of Four Countries That Border One Another

List Of Sets Of Four Countries That Border One Another

This is a list of sets of at least four countries that border one another. In the typical case, three countries that border one another form a ring around a landlocked fourth. Examples of states in the centers of such configurations include Burundi, Luxembourg, Malawi and Paraguay.

No more than four contiguous countries can share borders, since the complete graph K5 is not planar. On the other hand, non-contiguous countries that have exclaves and dependent territories may form sets of five or more. Also, when regarding point borders as borders (e.g. Utah and New Mexico at the U.S.'s four corners), theoretically any number of regions may meet in one point, and can be considered all bordering one another.

As of the 2006 breakup of the State Union of Serbia and Montenegro, there are at least twelve four-country sets in the world in which each country shares a boundary (land or fresh water) with the others (thirteen when including states with limited recognition).

Read more about List Of Sets Of Four Countries That Border One Another:  Near Misses, Former Border Sets of At Least Four Countries, See Also

Famous quotes containing the words list of, list, sets, countries and/or border:

    I made a list of things I have
    to remember and a list
    of things I want to forget,
    but I see they are the same list.
    Linda Pastan (b. 1932)

    Religious literature has eminent examples, and if we run over our private list of poets, critics, philanthropists and philosophers, we shall find them infected with this dropsy and elephantiasis, which we ought to have tapped.
    Ralph Waldo Emerson (1803–1882)

    It is time to be old,
    To take in sail:—
    The god of bounds,
    Who sets to seas a shore,
    Came to me in his fatal rounds,
    And said: ‘No more!’
    Ralph Waldo Emerson (1803–1882)

    In countries where there is a mild climate, less effort is expended on the struggle with nature and man is kinder and more gentle.
    Anton Pavlovich Chekhov (1860–1904)

    Swift while the woof is whole,
    turn now my spirit, swift,
    and tear the pattern there,
    the flowers so deftly wrought,
    the border of sea-blue,
    the sea-blue coast of home.
    Hilda Doolittle (1886–1961)