Terrain consists of 6 1kmx1km tiles, all of which tile with each other, linked together to form a 5kmx5km mesh. This mesh can be tiled off to infinity. Model also includes a hi-res 2d skydome incorporating horizon hills image. 4.5Meg of satellite images makes up the texture data for this model, giving a ground resolution of 2m per pixel. Higher res image data is available direct from the email address below.