RHH's photos with the keyword: contrails

The photo was taken between the Nevada town of Beatty and the northeast entrance to Death Valley National Park.

Taken near the California border this is rather typical Nevada scenery and the contrails are probably of planes flying in and out of Las Vegas.

Dedicated to my good friend, Valter, the geometry teacher. Perhaps he can find one of the principles of Euclidian plane geometry illustrated in this photo.