Index (Apollo 15 site craterlet name)
Lat: 26.1°N, Long: 3.7°E, Diam: 0 km, Depth: km, Rükl: 22
A prominent crater near the landing site that served as the major landmark for orbital tracking and for LM descent. It is old enough that its original sharp rim morphology has been eroded down.
Index (not really a page for craterlet Index, it's an overview of the surface activities of Apollo 15, quite an interesting page!).
The Landing Site Name "Index" is plotted on Topophotomap 41B4/S1 .
Astronaut-named feature, Apollo 15 site.
The naming of that craterlet (Index) seems to have been a complicated happening! (see Wikipedia page mentioned above).
Kenneth F. Weaver: Apollo 15 explores the mountains of the moon (National Geographic, February 1972).
David M. Harland: EXPLORING THE MOON; The Apollo Expeditions.
Eric M. Jones: APOLLO LUNAR SURFACE JOURNAL (ALSJ).