a small gray-brown canyon that was formed due to mining and dredging activities

activities adventure background brown canyon canyons central city cliff cloud cloudscape cloudy color colorful countryside dawn desert district dredging dusk earth environment evening ex-mining formed geology golden grand gray-brown ground high hole horizon indonesia java land landmark landscape light like located meteseh mining morning mound mounds name natural orange outdoor place plateau ridge rock ruins sand scenic semarang silhouette sky small soil stone sun sunny sunrise sunset sunshine tembalang tower twilight valley view village watching