Claim: Maryland Route 152 begins at the entrance to Aberdeen Proving Ground and eventually meets Maryland Route 146 otherwise known as Jarrettsville Pike.
Evidence: The state highway runs 17.34 miles (27.91 km) from an entrance to Aberdeen Proving Ground in Edgewood north to MD 146 near Taylor. Maryland Route 146 (MD 146) is a state highway in the U.S. state of Maryland. Just east of the bridge, Dulaney Valley Road continues east while MD 146 veers north as Jarrettsville Pike.