aerial view of lake mead, nevada

mountain geology plateau terrain landscape reflection valley coast wilderness soil canyon ridge cloud lake mead sky clouds blue nature air white heaven weather day cloudscape cloudy aerial high space fly light view beauty atmosphere abstract cumulus water drought environment environmental issues climate change global warming use las vegas real estate bathtub ring colorado river rocky mountains evaporative cooling conservation megadrought mcadorey aridification hoover dam temple bar marina boating rights agriculture nevada showing rim formed result