Crater Atlas, and its companion Hercules to the west, are "landmark"
features, easily recognized and useful for orientation.
Rilles (JRF <freeman _at_ netcom.com>)
A rille system begins west of Hall, passes east of George Bond, and
extends onto Rukl chart 25,
where it ends near Romer.
Rima G. Bond and Rima Romer (David North <d _at_ timocharis.com>)
A sinuous rill could be traced from east of Poseidon for what seemed to
be over 200 kilometers with lots of twists and turns through rough
terrain; this appears to be rima G. Bond and rima Romer. The light -- or
something -- made them seem to be one long scratch in the lunar surface.