This is a high quality model with accurate geometry derived from satellite height data.
the model consists of three parts, the south, north part and the center volcano. the two texture maps for the north and south part are both of resolution 13000*7500 so with north and south the resolution would be 26000*15000 and then the center part is of resolution 11000*11000 for the renders i used a 50percent resolution maps since my hardware has limitations, these 50percent resolution maps are also included of course. this model was made in blender. but as you can see works fine in max as well.