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  2. Topographic map - Wikipedia

    en.wikipedia.org/wiki/Topographic_map

    According to 2007/2/EC European directive, national mapping agencies of European Union countries must have publicly available services for searching, viewing and downloading their official map series. [20] Topographic maps produced by some of them are available under a free license that allows re-use, such as a Creative Commons license. [21]

  3. List of passes of the Rocky Mountains - Wikipedia

    en.wikipedia.org/wiki/List_of_passes_of_the...

    Selected mountain passes of the Rocky Mountains; Pass Region Elevation [1] [2] WGS84 [3] [4] Access; Abbot Pass [5] Alberta British Columbia 2922 m 9,587 ft Foot trail between Banff National Park and Yoho National Park

  4. Topographic prominence - Wikipedia

    en.wikipedia.org/wiki/Topographic_prominence

    This can be calculated for a given peak in the following manner: for every path connecting the peak to higher terrain, find the lowest point on the path; the key col (or highest saddle, or linking col, or link) is defined as the highest of these points, along all connecting paths; the prominence is the difference between the elevation of the ...

  5. Bearing (navigation) - Wikipedia

    en.wikipedia.org/wiki/Bearing_(navigation)

    Thus, 32 points of 11.25° each makes a circle of 360°. An object at 022.5° relative would be 'two points off the starboard bow', an object at 101.25° relative would be 'one point abaft the starboard beam' and an object at 213.75° relative would be 'three points on the port quarter'. This method is only used for a relative bearing.

  6. Hypsometry - Wikipedia

    en.wikipedia.org/wiki/Hypsometry

    Differences in hypsometric curves between landscapes arise because the geomorphic processes that shape the landscape may be different. When drawn as a 2-dimensional histogram, a hypsometric curve displays the elevation (y) on the vertical, y-axis and area above the corresponding elevation (x) on the horizontal or x-axis. The curve can also be ...

  7. Height above mean sea level - Wikipedia

    en.wikipedia.org/wiki/Height_above_mean_sea_level

    Height above mean sea level is a measure of a location's vertical distance (height, elevation or altitude) in reference to a vertical datum based on a historic mean sea level. In geodesy, it is formalized as orthometric height. The zero level varies in different countries due to different reference points and historic measurement periods.