Triangles: 110k
Vertices: 55.8k
More model informationFull tutorial here: https://80.lv/articles/updating-a-historical-usgs-map-with-data-from-nasa/
I followed this great ‘draw the owl’ guide by Joshua Stevens, Data visualization and cartography lead at NASA Earth: https://www.joshuastevens.net/blog/tactile-topography/
Archival map from: https://ngmdb.usgs.gov/topoview Elevation data from (free signup required) : https://urs.earthdata.nasa.gov, via http://dwtkns.com/srtm30m
Extra help opening / converting HGT file from: https://www.lifewire.com/hgt-file-2621580
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