Lenticular Clouds over Helena Montana (Panorama)

Epic Sunset Panorama featuring from left to right: Mt Ascension (background) and Bopart Hill's collection of rock cairns (foreground), Mt Helena, Downtown Helena's Cathedral of Saint Helena and Montana State Capitol and waaayy in the background - the Sleeping Giant Mountain. A wave of wind creates ‘chinook arch’ is an unusual-looking cloud formation common to mountain areas created by warm chinook winds blowing off the Rocky Mountains. They often can make for fantastic sunsets or sunrises. In this case, one of Helena's most memorable sunsets.