non asphalt lateritic road or laterite rouge soils red earth street on khao thewada mountain for vehicle off-road journey to ban

adventure asphalt buri country countryside destination dirty dust earth environment exploration forest gravel hill journey jungle khao khi landscape laterite lateritic meadow mountain national natural nature nonasphalt offroad park path phu red relax road rouge rural sand skeletal soil street suphan suphanburi taphoen thai thailand thewada toei travel tree trip unpaved valley village