northshore road sr167 in lake mead national recreation area winds through semi desert landscape

northshore road sr167 lake mead national recreation area winds semi desert landscape colorful mountains boulder city overton nevada usa arizona colorado river erosion mohave nationa park drive arm sr 167 us united sates blue sky rocks dry environment geological formation geology indigenous territory lava rock limestone mountain mountainous nature reserve outdoors panorama peak ridge feature formations layers rugged terrain sandstone semidesert shale trails valley volcanic wilderness