MD 464 heads southeast as two-lane undivided Souder Road between residential subdivisions and farmland and enters the town of Brunswick.

At its intersection with Ninth Avenue and Cummings Drive west of Brunswick High School, the state highway turns northeast onto Point of Rocks Road.

The state highway meets the southern end of Lander Road prior to crossing Catoctin Mountain.

The state highway continues east a short distance to its eastern terminus at Ballenger Creek Pike south of St. Paul's Episcopal Church.

[3][4] The state highway was extended east to Lander Road, including a new through truss bridge over Catoctin Creek, between 1933 and 1935.

[5][6] One mile (1.6 km) of highway was constructed from Ballenger Creek Pike toward the southern end of Lander Road in 1938.