Tags: Crater.
Tamm is a shallow lunar impact crater. It is located to the west-northwest of the much larger and more prominent crater Chaplygin. Attached to the south-southwestern outer rim of Tamm is the smaller van den Bos. There is a gap in the southern rim where these two craters are joined together.The rim of Tamm is worn and eroded with old impact rims incising the northern edges. The rim edge is now a circular uneven ring of ridges.