fall line


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fall line,

boundary between an upland region and a coastal plain across which rivers from the upland region drop to the plain as falls or rapids. A fall line is formed in an area where the rivers have eroded away the soft rocks of a coastal plain more quickly than the older harder rocks of an upland region. Such erosion follows a crooked line along a coast. River vessels usually cannot travel beyond a fall line and their cargoes must be unloaded there. The falls (see waterfallwaterfall,
a sudden unsupported drop in a stream. It is formed when the stream course is interrupted as when a stream passes over a layer of harder rock—often igneous—to an area of softer and therefore more easily eroded rock; the edge of a cliff or plateau; or the
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) also supply water power for the development of industry such as textile and grist mills. For these reasons a fall line often marks a string of developed areas, such as the break between the Appalachian rise and the coastal plain of the eastern United States, where a band of commercial and industrial cities quickly developed in the 19th cent., paralleling the line of port cities along the coasts. Typical fall-line cities on the Atlantic coast of the United States are Lowell, Mass.; Pawtucket, R.I.; Troy, N.Y.; Trenton, N.J.; Georgetown, now part of Washington, D.C.; Richmond, Va.; Raleigh, N.C.; Columbia, S.C.; and Augusta, Ga. Among the fall-line cities of the Mississippi valley are Louisville, Ky., and Minneapolis, Minn.

fall line

[′fȯl ‚līn]
(geology)
The zone or boundary between resistant rocks of older land and weaker strata of plains.
The line indicated by the edge over which a waterway suddenly descends, as in waterfalls.

Fall Line

a natural junction, running parallel to the E coast of the US, between the hard rocks of the Appalachians and the softer coastal plain, along which rivers form falls and rapids
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In conjunction, Asilomar's Series B funding round follows the successful USD3m Series A round led by Fall Line Capital, LLC and Cultivian Sandbox Ventures.
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This volume traces the social and cultural life of the upstate region north and west of Columbia and the geologic fall line. Only recently has attention been paid to the region, particularly in the nineteenth century and this makes up for it.
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A companion book, "Bottom of da Boot," has been published by Fall Line Press.
This year's projects involve: protecting more than 22,000 acres of rare blue oak habitat in the Sierra foothills of California; 1,334 acres of tallgrass prairie adjacent to the Rocky Flats National Wildlife Refuge in Colorado; protecting 1,530 acres that represent a key migratory corridor for the endangered Florida panther; saving a 7,550-acre tract in Georgia's Fall Line Sandhills; protecting 4,469 acres on the big island of Hawaii that are a rare bird habitat; and protecting seven parcels of land, or nearly 13,000 acres, along the Appalachian Trail in North Carolina and Tennessee.
Fall Line magazine has an online forum of experts at www.fall-line.co.uk Hit the sails with SARAH WHITFIELD KING JOI?