Mills is a small crater that lies on the far side of the Moon.

This is an undistinguished impact crater that is roughly circular in form, with a slight outward bulge to the northwest.

This bulge may be due to the merger of a smaller impact with the rim.

The interior floor has a ridge of material protruding inwards from the southern inner wall, but is otherwise marked only by a number of tiny craters.

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Mills.