USGS DEM
GEOTIFF (0.5M) NE Corner JPEG (7M) NE Corner JGW (georeferencing) NW Corner JPEG (7M) NW Corner JGW (georeferencing) SE Corner JPEG (7M) SE Corner JGW (georeferencing) SW Corner JPEG (7M) SW Corner JGW (georeferencing)
TIFF (8M) TFW (georeferencing)