The Baltimore & Ohio-heritage CSX main line passes south of Mt. Airy through the Mt. Airy tunnel. At one time there was a 3-4 mile long loop branch that passed through the town of Mt. Airy, a couple miles north of the main line tunnel.
The
eastern end of the branch is now abandoned. The remaining stub of the
branch joins the main line west of town at Mt. Airy Junction. Judging
by the condition of the branch, there is little rail traffic today (2003).