Rumford is a lunar impact crater that lies on the far side. It is located to the northwest of the large crater Oppenheimer, and to the east-southeast of Orlov. This crater lies across the eastern rim of the larger satellite crater Rumford T. The perimeter is somewhat rounded and polygonal in shape, with an outward protrusion along the eastern edge. The inner walls have slumped along the eastern half to produce a shelf along the sides. (wikipedia entry)