Together with Bergman, Fischer to the north-northeast and Richards in the north of Mendeleev form the northern side of the pentagon.
The remainder of the interior floor is relatively flat, at least in comparison to the rugged blast terrain radiating away from the exterior.
These form a line that trends from near the southwest part of the interior, then tangentially grazes the western rim of the crater Richards.
[5] In Stanislaw Lem's More Tales of Pirx the Pilot, a story is wrapped around a fictional lunar science facility that is stationed in Mendeleev.
By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Mendeleev.