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The Casselman Inn is one of the most intact survivors of the numerous inns that once appeared along the National Road through western Maryland. Still functioning as a restaurant and inn, this two-and-a-half-story brick structure has a double-pile, center-hall plan expanded with a dining room/kitchen ell to the rear. Other extant former National Road inns and taverns that survive but have been altered to various degrees include the Four Mile House (c. 1840; 520 Old U.S. 40) in La Vale, the Flintstone Hotel (c. 1807; 21998 Old U.S. 40), also in Allegany County, Hagan’s Tavern (c. 1830; 5018A Old U.S. 40) in Frederick County, and the Tomlinson Inn (c. 1818; 12871 Old U.S. 40) on the outskirts of Grantsville.