The Strange and Beautiful World of Arches National Park

stable - adj. in a good state or condition that is not easily changed or likely to change

erosion - n. in a good state or condition that is not easily changed or likely to change

thunderous - adj. making a loud noise like the sound of thunder; very loud

chiseled - adj. having an attractive well-formed shape

geological - adj. relating to the rocks, land, processes of land formation, etc., of a particular area

shade - n. n area of slight darkness that is produced when something blocks the light of the sun

ledge - n. a flat rock surface that sticks out from a cliff