Altocumulus and altostratus
/Another day and another sunrise looking the same direction as the photo above. This time sunlight was shining on a midlevel cloud at about 12,000 feet seen above darker lower clouds. The lower clouds were also in the mid-layer at around 6,000 feet above the ground. The mid-layer is defined as clouds between 6,000 feet and 18,000 feet, which is over 2 miles thick - easily enough room to have multiple cloud layers. The darker clouds are altostratus and altocumulus.