The island of Monserrat (and volcano). It has been constructed using 1 arcsecond resolution SRTM data from the Space Shuttle (just under 1.0 million facets). This software was created 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.