Fall line (topography): Difference between revisions

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Line 1: {{Short description\|Mountain or hill direction}} ~~{{merge\|Piste\|discuss=Talk:Fall line (skiing)#Merger proposal\|date=September 2014}}~~ {{distinguish\|text=[[fall line]] in geomorphology}} {{Unreferenced\|date=August 2008}}In [[alpine skiing]], a '''fall line''' refers to the line down a [[mountain]] or [[hill]] which is most directly downhill. That is, the direction a ball would roll if it were free to move on the slope under [[gravity]]. A skier is said to be "skiing the fall line" if he is skiing a [[wikt:line\|line]] with his skis pointing generally down, rather than traversing across it. [[File:Contour map with an example fall line.jpg\|thumb\|upright=1.15\|Contour map with an example fall line. Contour lines of constant elevation are blue. One example fall line is red.]] A '''fall line''' refers to the line down a [[mountain]] or [[hill]] which is most directly downhill; that is, the direction a ball or other body would accelerate if it were free to move on the slope under [[gravity]]. Mathematically the fall line, the [[line of greatest slope]], is the negative of the [[gradient]] (which points uphill) and perpendicular to the [[contour line]]s. [[File:Emmeline-Ragot.jpg\|thumb\|A [[Mountain biking\|mountain biker]] riding a trail which follows the fall line.]] ~~Fall-Line Analysis: An evaluation of the mountain terrain in terms of the natural fall-line.~~ In [[mountain biking]], a [[Single track (mountain biking)\|trail]] follows the "fall line" if it generally descends in the most downward direction, rather than traversing in a sideways direction.<ref>{{Cite web\|last=Baker\|first=Park\|date=2015-04-03\|title=Farlow Gap - Mountain Biking\|url=https://rootsrated.com/brevard-nc/mountain-biking/farlow-gap\|url-status=dead\|access-date=2021-09-06\|website=RootsRated\|at=What Makes It Great, 2nd paragraph\|language=en\|archive-date=2015-10-04\|archive-url=https://web.archive.org/web/20151004180558/https://rootsrated.com/brevard-nc/mountain-biking/farlow-gap}}</ref> A skier is said to be "skiing the fall line" if they are moving generally down, making turns either side of the fall line, rather than moving across the slope. ~~The fall-line is the path an object takes as it moves down a slope perpendicular to the contour~~ ~~lines. Fall-line skiing provides for the natural flow of skier routes which will serve all skier~~ ~~ability levels, from the top of the mountain to the base areas, on a consistent basis.~~ ~~Consistency of fall-line provides the best recreational skiing experience with the least~~ ~~amount of environmental disruption due to minimal requirements for earthwork during ski~~ ~~trail construction.~~ ==See also== * [[Glossary of cycling]] * [[Ridge line]] * [[Topography]] * [[Topographic profile]] * [[Gradient descent]] ==References== {{reflist}} [[Category:Mountain biking]] [[Category:Alpine skiing]] [[Category:Trails]] [[Category:Topography]] {{~~ski~~Topography-stub}} {{Skiing-stub}}

Fall line (topography): Difference between revisions

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