State highway in Maryland, United States
Maryland Route 850 (MD 850) is a collection of state highways in the U.S. state of Maryland. These seven highways are sections of old alignments of MD 26, most of which are named Old Liberty Road, in the communities of Taylorsville, Winfield, and Eldersburg in southern Carroll County. There are also at least three former sections of MD 850: two are in Eldersburg and one is in Frederick. MD 26 was constructed west of Eldersburg between the early 1920s and early 1930s. That highway was extensively relocated and reconstructed across southern Carroll County in the late 1950s and early 1960s; many of the segments of Old Liberty Road became portions of MD 850.