To the northwest is the crater Hahn, and due north lies the large walled plain Gauss.

It appears roughly diamond-shaped as viewed from above, although it is heavily foreshortened when seen from the Earth.

A small crater lies along the western rim and inner wall.

The small crater Seneca D is attached to the eastern exterior.

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Seneca.