Constructed using 1 arcsecond resolution SRTM data from the Space Shuttle (about 1.9 million polygons). It was made using a new and, as yet, unreleased version of SRTM2STL. The source code for creating files at 3 arcsecond resolution is available up on github under the GNU license. Go to github and search for SRTM2STL.
MountSaintHelens_1arc.stl | 91.4MB |