To the north is the crater Lilius, while to the southeast is Pentland and to the south the larger Curtius.

There are adjacent craters attached to the northeast, southwest, and southern parts of the rim.

The bottom is relatively flat with a few craterlets and a double central peak offset to the north.

[2] The crater is named for Franz Xaver, Baron Von Zach, a 19th-century Hungarian astronomer.

[1] By convention, features are identified on lunar maps by placing the respective letter to the side of the crater midpoint closest to Zach:[3]