Here we zoom in more. C is the best image we had, an Apollo 15 oblique Hasselblad photo, roughly rectified. Another clue came from a Soviet Lunokhod 1 route map which showed many craters. Image E is a shaded relief depiction of those craters. D was my attempt to match E with C. You can see how hard it would be to get it right. As an extra bit of the puzzle I thought a very subtle feature on the horizon in a Lunokhod 1 image might be a crater rim. #maps #moon#Luna17 #lunokhod1