hikers on the red sandstone cliffs of the calico trail in red rock canyon national conservation area, nv. usa

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