Mare Nectaris is in the south-eastern quadrant of the moon and features a
dark lava-filled basin with relatively few sizeable craters.
Towards the south of Mare Nectaris (top centre) is a small, but deep
crater - Rosse is just 7 miles in diameter but has walls 7000ft high.
Nearby in the top-left of the image is the adjacent walled plain
Fracastorius with high walls showing steep slopes around the south-eastern
edge of its 75-mile diameter floor which is featuring small craters
Fracastorius L, M and N, just about resolved in the image. They are only
2-3 miles in diameter.
On the opposite northern side of Mare Nectaris are a couple of 25-30 mile
diameter "ghost" craters, the more prominent of which is Daguerre. Towards
the east is an area with many small craters. The two more prominent
slightly overlapping craters at the bottom are Isidorus (25mi) on the left
which shows Isidorus A (6mi), a small craterlet in the illuminated part of
its floor. The neighbour to the right is Capella (30mi) with a central
peak and steep walls which are 10,000ft high - twice as high as Isidorus.
Lots of interesting craters and detail towards the East of Mare Nectaris,
however my favourite is the larger crater Gutenberg (45mi) near the right
edge in the bottom half of the image. The eastern walls are crushed by
Gutenberg E (16mi) and the crater floor shows central mountains.