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  2. Natural border - Wikipedia

    en.wikipedia.org/wiki/Natural_border

    A natural border is a border between states or their subdivisions which is concomitant with natural formations such as rivers or mountain ranges. The "doctrine of natural boundaries" developed in Western culture in the 18th century being based upon the "natural" ideas of Jean-Jacques Rousseau and developing concepts of nationalism . [ 1 ]

  3. Border - Wikipedia

    en.wikipedia.org/wiki/Border

    A landscape border is a mixture of political and natural borders. One example is the defensive forest created by China's Song dynasty in the eleventh century. [6] Such a border is political in the sense that it is human-demarcated, usually through a treaty. However, a landscape border is not demarcated by fences and walls but instead landscape ...

  4. List of political and geographic borders - Wikipedia

    en.wikipedia.org/wiki/List_of_political_and...

    Below are separate lists of countries and dependencies with their land boundaries, and lists of which countries and dependencies border oceans and major seas. The first short section describes the borders or edges of continents and oceans/major seas. Disputed areas are not considered.

  5. Boundaries between the continents - Wikipedia

    en.wikipedia.org/wiki/Boundaries_between_the...

    The boundary between Asia and Europe is unusual among continental boundaries because of its largely mountain-and-river-based characteristics north and east of the Black Sea. Asia and Europe are considered separate continents for historical reasons; the division between the two goes back to the early Greek geographers .

  6. Borders of the United States - Wikipedia

    en.wikipedia.org/wiki/Borders_of_the_United_States

    Exclusive economic zone maritime boundaries in the Caribbean Sea and equatorial Atlantic Ocean EEZ maritime boundaries in the Pacific Ocean. The United States has land borders with Canada to the North, and Mexico to the South and a maritime boundary with Russia to the West, as well as maritime boundaries with several countries of the extensive exclusive economic zone (EEZ).

  7. State shapes - Wikipedia

    en.wikipedia.org/wiki/State_shapes

    The shape of a state is determined by the political boundaries and geography that determine its territory, and that shape impacts the politics and economies of the state. [1] The six categories of state shapes are: compact; elongated or attenuated; fragmented; prorupted or protruded; perforated; and compound or complex.

  8. Political geography - Wikipedia

    en.wikipedia.org/wiki/Political_geography

    Although contemporary political geography maintains many of its traditional concerns (see below) the multi-disciplinary expansion into related areas is part of a general process within human geography which involves the blurring of boundaries between formerly discrete areas of study, and through which the discipline as a whole is enriched.

  9. Region - Wikipedia

    en.wikipedia.org/wiki/Region

    Natural resource regions can be a topic of physical geography or environmental geography, but also have a strong element of human geography and economic geography. A coal region, for example, is a physical or geomorphological region, but its development and exploitation can make it into an economic and a cultural region.