Lawn Speedway was founded in 1935 by Dr. George W. Sweigart, a dentist and a former mayor for the town of Hartford City, Indiana.
Also constructed during the early years of the track were a dance hall, a swimming pool, as well as summer cabins for vacationers.
The dance hall played host to two the most influential big band musicians of the era, The Dorsey Brothers and Sammy Kaye.
However, in 1939 a fire caused by an overheated exhaust fan in the orchestra pit led to the dance hall's first demise.
When the hall was rebuilt, a second fire caused by a coal-powered fireplace led to the dancehall's second, and ultimately final demise.
So Sweigart hired a crew from the area and the first concrete surface was laid on the track.
Over the next 73 years, the track would see many famous names grace its presence, including Tony Stewart, Ed Carpenter, Pat O'Connor, Tom Cherry, Art Cross, and many others.
Late in 2019, it was announced that driver Dave Duncan and Winchester Speedway co-promoter Jimmy Wyman would begin promoting all races at Mt.
Any rear-wheel-drive full-sized car with a wheelbase of not less than 108 inches is eligible to compete in the Thundercar Division.