Frostburg is a city in Allegany County, Maryland. It is located at the head of the Georges Creek Valley, 8 miles west of Cumberland. The town is one of the first cities on the "National Road", US 40, and the western terminus of the Western Maryland Scenic Railroad. It is part of the Cumberland metropolitan area. Frostburg was originally called Mount Pleasant until 1820, when the government developed a postal service, and the town was renamed Frostburg.