Yerkes (crater)

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Yerkes is an impact crater near the western edge of Mare Crisium on the Moon. It is located west of the crater Picard and south of the crater Peirce. In the southeast of the crater Greaves and Lick on the shore of Mare.

In the past, the crater interior was almost completely flooded by lava, so that protrudes only a shallow remnant of the former crater rim above the surrounding Mare. This rim is widest in its western and southern parts, while it is virtually invisible to the east and shows only a weak curve line in the lunar surface. The crater floor differs in its albedo not from the nearby moon sea, so that the formation hardly stands out from its surroundings. From the northern edge of a low ridge runs in a north - north-westerly direction to the satellite crater ' Yerkes E'.