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Encyclopedia > Topographical summit

A topographical summit is a point on a surface which is higher in elevation than all points immediately adjacent to it. Mathematically speaking, a summit is a local maximum in elevation. Colloquially, a summit generally refers to a mountain peak with some significant amount of topographic prominence. In topography, prominence, also known as autonomous height, relative height or prime factor (in Europe), is a concept used in the categorization of hills and mountains. ...


When referring to geographic features such as mountains on a topographic map, variations in elevation are shown by contour lines. The elevation of a mountain denotes the highest point or summit and is typically illustrated as a small circle on a topo map with the AMSL height shown in either metres or feet or both. Example of a topographic map with contour lines Topographic maps, also called contour maps, topo maps or topo quads (for quadrangles), are maps that show topography, or land contours, by means of contour lines. ... Contour map A contour line (also level set, isogram or isarithm) for a function of two variables is a curve connecting points where the function has a same particular value. ... The term above mean sea level (AMSL) refers to the elevation (on the ground) or altitude (in the air) of any object, relative to the average sea level. ... The metre, (symbol: m) is the SI base unit of length. ... A foot (plural: feet) is a non-SI unit of distance or length, measuring around a third of a metre. ...


  Results from FactBites:
 
California Topographical Maps - Aerial Photos (163 words)
Now you can have complete topographical map coverage for the entire state of California in two convenient books.
They go beyond the topographical maps that USGS provides because they have shaded-relief topography, road names, route numbers, points of interest and GPS grids.
It is a complete California topographical map collection, a recreational directory and travel guide all in one.
Topographical Engineers -- Bent's to Santa Fe (9724 words)
Several large white masses were discernible near the summits of the range, which we at first took for snow, but which, on examination with the telescope, were found to consist of white limestone, or granular quartz, of which we afterwards saw so much in this country.
The mountain appears to be formed chiefly of sandstone, disposed in strata of various shades of color, dipping gently to the east, until you reach near the summit, where the castellated appearance commences, the sides become perpendicular, and the seams vertical.
We were splendidly supported also by the soldiers on foot, who had crossed the summit and with reckless bravery were descending the inner slope of the hill as we thundered through the gorge.
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