3d topo of the May lake/Mt Hoffman region of Yosemite NP. There is a dual extruder version which colors May Lake and Tenaya lake. The print shown is a tiny version to test the dual extrusion. The files are almost ridiculously huge because they contain all the detail in the 1/3 arc second DEM files. You could print them at any conceivable size with more detail than your printer can render."mt hoffman.stl" is a single extruder version. "Mt hoffman no lakes.stl" has holes booleaned out of it in Blender. "Mt hoffman lakes.stl" is the corresponding blocks which, if you are careful, you can drop right into place and then print a contrasting color.