Md. Code Ann., Local Gov't § 12-522
If any road in Frederick County has not been maintained for a period of 20 years before July 1, 1973, it shall be conclusively presumed that the road was closed in accordance with this subtitle.
Added by Acts 2013, c. 119, § 2, eff. Oct. 1, 2013. Amended by Acts 2014, c. 645, § 1, eff. Dec. 1, 2014.