Definitions for fall line

This page provides all possible meanings and translations of the word fall line

Random House Webster's College Dictionary

fall′ line`(n.)

  1. the natural boundary between an upland and a lowland, as a piedmont and a coastal plain: marked, in temperate or humid areas, by waterfalls and rapids.

    Category: Geography (places)

  2. Skiing. the path of natural descent from one point on a slope to another.

    Category: Sport

Origin of fall line:

1880–85

Wiktionary

  1. fall line(Noun)

    A line marking a boundary between an upland region and a plane; sometimes marked by a series of waterfalls on rivers that cross it.

  2. fall line(Noun)

    The imaginary line downhill that something falling downhill would naturally follow.

Freebase

  1. Fall line

    A fall line is the geomorphologic break between an upland region of relatively hard crystalline basement rock and a coastal plain of softer sedimentary rock. A fall line is typically prominent when crossed by a river, for there will often be rapids or waterfalls. Many times a fall line will recede upstream as the river cuts out the uphill dense material, often forming “c”-shaped waterfalls. Because of these features riverboats typically cannot travel any farther inland without portaging, unless locks are built there. On the other hand, the rapid change in elevation of the water, and the resulting energy release, makes the fall line a good location for water mills, grist mills, and sawmills. Because of the need for a river port leading to the ocean, and a ready supply of water power, settlements often develop where rivers cross a fall line.

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"fall line." Definitions.net. STANDS4 LLC, 2014. Web. 17 Sep. 2014. <http://www.definitions.net/definition/fall line>.

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