Marlboro Motor Raceway

The development of this road course was heavily influenced by the Lavender Hill Mob, a Washington, D.C.–based affiliate of the SCCA.

Between MMR, Beltsville Speedway (an oval track outside northeast D.C.) and Aquasco Speedway (one of the first 1/4-mile drag strips on the east coast and the first in the Mid-Atlantic area), Maryland played host to many high-profile motorsports events and welcomed many historic figures in automobile racing.

The Maryland State Police frequently used the track as a training facility for their high-speed maneuvering and handling courses.

One major safety concern at Marlboro was its two opposing straights on the south and east sides of the circuit.

Due to the track's location and orientation, addressing the facility's safety flaws would have been costly and tedious.

These dangerous straights bordered a large wetland area which has since been designated a nature preserve and the aptly named "Creek Bend" followed the course of the neighboring river.

The event included vintage racing vehicles and a scale model slot car replica of MMR.

Marlboro was also highlighted alongside several other abandoned motorsports facilities in 0-60 Magazine's 2008 Car of the Year ("Tommy") awards feature.

Any attempt to re-open the facility would likely be met with opposition from the surrounding residential population and environmental groups seeking to protect the neighboring river and park land.