Hi all,

Here a wide image showing the western side of Mare Imbrium from
Gruithuisen down to Prinz and Mons Vinogradov (extreme bottom). Thiny
rilles as Diophantus, Delisle and Brayley are here barely visible.

My attention was caught by that odd feature on the left (western) side
of Gruithuisen crater next to the dorsa: that sweet hole in the ground
looks like a reversed dome! I never noticed it before, can someone tell
me what is it?
Gruithuisen Delta mount also features an odd crest, it looks like a
rooster!

http://www.lazzarotti-hires.com/images/moon/gruithuisen-prinz20061201_lazz.jpg

More to follow.