sandy brown mounds that were excavated and piled together with tracks of large backhoe wheels

environment nature yellow agriculture background backhoe blue brown bulldozer construction development digger dirt dry dune earth earthworks geology gravel ground heap heavy hill industrial industry land large loader mound mountains natural organic pile push road rut sand sky soil space stack surface texture top traces tractor wheel print white sandy mounds excavated piled together tracks wheels backdrop prepare materials filling repairing roads rural thailand season