This is what I'm working on this week... took me about 2 days to model it, everything has UV's and ready to be textured !
This is based on a concept by Daniela Uhlig.
And this is what I'm doing as a homework for Alex Alvarez' Natural Environments class. :) Which i found pretty fun so far.
We used Google Earth to help us find a spot we like and its coordinates, then National Map Viewer to download the satellite data, Global Mapper to stitch textures together and export GeoTIFF files and Maya /Mental Ray for the 3D.