Thanks to ProteanMan's wonderful new Vancouver area 3D map, I have combined and re-cut the map to make a little map of Galiano Island and Saltspring Island, British Columbia Canada. I know that the Saltspring kids' school has a 3D printer, so it might be fun for them to be able to print their island.
EDIT: When comparing the 3D map to a google map, it appears to be distorted, everything is compressed north-south, so to correct that 'distortion' apply a 240% expansion to the north-south plane (x in the original file if you already downloaded it). I have uploaded a new STL with the correction already applied. This is the difference between the real satellite data and the flattened out globe type map that ends up distorting the shape of things, but is what we are used to looking at.
Magic Device PLA
In the slicer, you may want to increase the height of the model 2-3x to give a better looking but less accurate print. 0.1mm layers gives a smoother look, more like the STL model and 0.2mm layers gives a classic topographic map look with the more visible layers.
Import the needed STL files into MS 3D Builder, align them, group, then split 4 times, once on each side to create a new section. Export to STL. Open the STL in Repetier Host and let it repair the model, then re-export to STL.