Ley (crater)
 Ley is a lunar impact crater that is located across the southern rim of the much larger walled plain Campbell. Intruding into the south-southwestern rim of Ley is the slightly larger crater Von Neumann.The debris from the formation of Von Neumann has produced a bulging rampart that occupies the southwest interior floor of Ley. The outer rim of Ley has undergone impact erosion and is marked by a number of small craterlets.