>> 5 Use gdal_translate with the extents from step 2 to extract the output >> tile pixels from its corresponding vrt. > > Hmmmm, where do you reproject the raster images? I thought you had to > use gdalwarp for that. Or is that step 6? Oops. Yep, use gdalwarp (I was looking at my DEM processing script; its geo-to-geo). Brent