the encirclement parent "2". Where a single parent is listed, the different definitions agree. See also Lists of Ultras List of mountain lists List of islands by highest point Summit Topographic elevation Topographic isolation Topographic prominence Ultra-prominent summit Notes *.By convention, cols created by human activity are not counted. Therefore, the Suez, Panama and other canals are ignored in these calculations. Cuts that lower the natural elevations of mountain passes are also ignored. Towers, monuments and similar on the peaks are also ignored. References External links World peaks with 4000 meters of prominence from peakbagger.com World top 50 most prominent peaks, originally compiled by David Metzler and Eberhard Jurgalski, and updated with the help of others as new elevation information, especially SRTM, has become available. World top 100 most prominent peaks, from the same authors as the top 50. Map of the top 50 by Ken Jones Lists and/or maps covering all peaks in the world with 1500 m+ prominence. Compiled by Aaron Maizlish. The latest estimate is that there are 1,516. Peaks, Prominence