type=continuous category_min=1 category_max=24 projection=regular_ll dx=0.03333333 dy=0.03333333 known_x=1.0 known_y=1.0 known_lat=-89.98333 known_lon=-179.98333 wordsize=1 tile_x=600 tile_y=600 tile_z_start=1 tile_z_end=24 tile_bdr=3 units="category" description="24-category USGS landuse"