Drive eastward near Hagerstown in northern Washington County. The highway was constructed by Washington County with state aid in 1916. MD 61 was removed from the state highway system in 1956; part of the route's former path is now occupied by a quarry. MD 69 Maryland Route 69 was the designation for Jefferson Boulevard and Maryland Avenue from Mount Zion Road north to US 40 Alternate in Braddock Heights in western Frederick County. MD 69 was paved by Frederick County with state aid by 1911. The highway was removed from the state highway system in 1956. MD 70 Maryland Route 70 was the designation for Knoxville Road from US 340 in Knoxville east to Brunswick in western Frederick County. MD 70 was constructed by 1927. The highway was replaced with a westward extension of MD 464 in 1950. MD 478 was assigned to Knoxville Road by 1971. MD 71 (1927–1956) Maryland Route 71 was the designation for what is now MD 194 from MD 26 in Ceresville to the Pennsylvania state line near Taneytown in Frederick and Carroll counties. Much of the highway was constructed in Frederick County by 1927. MD 71 was changed to MD 194 in 1956 to match Pennsylvania Route 194, taking its number from the original MD 194 and handing the number to much of what is now US 301. MD 71 (1956–1959) Maryland Route 71 was the designation for the Blue Star Memorial Highway from US 50 in Queenstown to the Delaware state line near Warwick. MD 71 was assigned to the highway when it was completed in 1956. US 301 replaced the highway when the U.S. Highway was extended into Delaware in 1959. MD 71 connected to Delaware Route 71 at the state line during its short existence. MD 72 Maryland Route 72 was the designation for Lewistown Road, Old Frederick Road, and Creagerstown Road from US 15 in Lewistown east and then north through Creagerstown to a point south of MD 77 near Loys Station between Thurmont and Rocky Ridge in northern Frederick County. MD 72 was constructed as a concrete road by Frederick County with state aid from Lewistown to Links Bridge Road south of Creagerstown between 1919 and 1921. The highway was extended as a concrete road to the south end of Creagerstown in 1925 and 1926 and through Creagerstown in 1926 and 1927. MD 72 was extended to its northern