the red and yellow sandstone cliffs in red rock canyon national conservation area near las vegas, nv, usa

area basin blue boulders calico canyon clark clear cliffs climbing colorful conservation county desert dry environment fault feature features flora formation formations geological geology hiking hills indigenous keystone landscape las layers mojave mountain national nature nevada outdoors park parks peaks red reserve ridge rock rocks rugged sandstone sates semidesert sky state terrain territory thrust trail united usa valley vegas wilderness yellow