It lies to the south-southwest of the prominent crater Jackson, and material from the ray system centered on Jackson lies across most of McMath.

Farther to the south lies the crater pair of Zhukovskiy and Lebedinskiy.

The rim is the most heavily worn at the northern end, but is more intact to the east and west.

The interior floor is relatively level, and is marked by only a few tiny craterlets.

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