Lenticular Cloud Over Mount Rainier
Lenticular clouds, technically known as altocumulus standing lenticularis, are stationary lens-shaped clouds that form at high altitudes, normally aligned at right-angles to the wind direction.
They are relatively common over Mount Rainier @ 14,410 feet (4,392 m).
Taken from inside a Kenmore-Air Flight @ Seattle Boeing Field.
Converted to B&W and grain added for effect.
View on Black If You Dare!!