Lundmark is an eroded crater

Impact crater

In the broadest sense, the term impact crater can be applied to any depression, natural or manmade, resulting from the high velocity impact of a projectile with a larger body...

 on the far side of the Moon

Moon

The Moon is Earth's only known natural satellite,There are a number of near-Earth asteroids including 3753 Cruithne that are co-orbital with Earth: their orbits bring them close to Earth for periods of time but then alter in the long term . These are quasi-satellites and not true moons. For more...

. It lies to the southwest of the Mare Ingenii

Mare Ingenii

Mare Ingenii is one of the few lunar mare features on the far side of the Moon. The mare sits in the Ingenii basin. This basin material is of the Pre-Nectarian epoch. The mare material located in Ingenii and the surrounding craters is of the Upper Imbrian epoch...

, one of the rare mare

Mare

Female horses are called mares.Mare is the Latin word for "sea".The word may also refer to:-People:* Ahmed Marzooq, also known as Mare, a footballer and Secretary General of Maldives Olympic Committee* Mare Winningham, American actress and singer...

 areas on the far side. Nearly attached to the southwestern outer rim of Lundmark is the crater Koch

Koch (crater)

Koch is a crater on the far side of the Moon. It lies in the southern hemisphere, to the south-southeast of the walled plain Jules Verne. Attached to the northeastern rim of Koch by a neck of uneven terrain is the crater Lundmark. Less than one crater diameter to the south of Koch is Crocco.This...

, and located to the northwest is the flooded Jules Verne

Jules Verne (crater)

Jules Verne is a large lunar crater on the far side of the Moon, named after the French author. It is located to the west-southwest of the Mare Ingenii, one of the few lunar mares on the far side. To the southeast of Jules Verne is the crater Lundmark, while Koch is located to the south-southeast...

.

It is a heavily worn and damaged crater formation that is marked by a number of smaller craters along the sides and interior. The satellite crater Lundmark B overlies the north-northeastern rim, and Lundmark D lies across the eastern rim. There is a cluster of several small craterlets in the southeastern interior floor, and another grouping of craters in the uneven terrain between Lundmark and Koch.

Satellite craters

By convention these features are identified on lunar maps by placing the letter on the side of the crater mid-point that is closest to Lundmark.

Lundmark	Latitude	Longitude	Diameter
B	37.7° S	153.2° E	30 km
C	35.8° S	155.6° E	25 km
D	38.8° S	154.3° E	29 km
F	39.4° S	157.2° E	26 km
G	40.5° S	155.5° E	35 km