Differences in horizontal position and altitude between RAMP DEM data and Wikipedia data for 29 mountains and peaks in the Sentinel range. Antarctica. Errors in altitude are RAMP data minus Wikipedia data. High quality locations are those that have been measured in degrees, minutes and seconds, low quality locations have only been specified in degrees and minutes. Not specifying seconds can lead to position inaccuracies in Wikipedia data of order 1 km. The height error of 690 metres is for Mount Mohl.
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