Geospatial summary of the High Peaks/Summits of the Juneau Icefield
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The geospatial summary of the High Peaks/Summits of the Juneau Icefield is a compilation of the basic geospatial properties (location, elevation and prominence) of the peaks/summits within the general area of the Juneau Icefield located North and East of Juneau, Alaska extending north to Skagway, Alaska. The peaks are classified by elevation: 2000 m, 2050 m, 2100 m, 2150 m, 2200 m, 2250 m, 2300 m and above 2400 m. Most (216, 79%) of the 272 summits compiled have not been assigned an official name[1] by the United States Geological Survey (USGS) Geographic Names Information System (GNIS) and as such are delineated as "Un-Named" (UNP in the KML file).
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In addition, select minor peaks are included to report those that are contained within the GNIS database and to permit assigning a location marker (coordinate) for Nunatak identification and ridge delineation for the USGS Hydrologic Unit Code boundaries for cross referencing these areal shapes to a single coordinate.
The elevation of the peaks and summits of the Juneau Icefield was determined by referencing multiple sources including:
- GNIS database
- BC Geographical Names (BCGN) database
- USGS topographic maps
- United States Forest Service (USFS) topographic maps
- Natural Resources Canada (NRC) topographic maps
- Peakbagger.com with cross-referencing to USGS and USFS
- Selected other sources (such as scientific papers).
The GNIS database consistently reports the peak elevation lower than the referenced USGS and/or USFS topographic maps. The topographic maps also report lower elevations than selected GPS measurements conducted by personnel of the Juneau Icefield Research Program, but not to the degree of the GNIS database.
In this article, the topographic map values were used to report elevation above mean sea level (MSL), unless a more accurate GPS measurement was available.