FIGURE 9.-Geologic sketch map of the
Descartes region. The various symbols on this map are used to
indicate different features and different kinds of rocks that have
been discovered already through observations made of the Moon through
Earth-based telescopes and with spacecraft photography. Most of the
area is covered with the Cayley formation, shown on the map with the
symbol Ic. The names of various features, picked by the Apollo 16
crew, are also shown. The symbol Cr is used for material from the
rayed craters. The region of Stone Mountain is covered with material
that contains many furrows and is identified as the Descartes
Formation (Idd). It occurs in the vicinity of Smoky Mountain also.
Note the extensive rays of South Ray crater. Compare this map with
the photo of the same area shown in Figure 18. Map courtesy of U.S.
EP-95 ON THE MOON WITH APOLLO 16
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