Maryland by County

County		Round Barns		Covered Bridges
Allegany		MD-01-01		20-01-A
Baltimore				20-03-02
Cecil		MD-07-01		20-07-01
				20-07-02
				20-07-a
Frederick		MD-10-01		20-10-01
				20-10-02
				20-10-03
				20-10-a
				20-10-b
				20-10-c
				20-10-f
Garrett		MD-11-01		20-11-b
		MD-11-02		20-11-c
		MD-11-03		20-11-d
				20-11-E
Harford				20-12-a
Howard				20-13-A
				30-13-b
Montgomery		MD-15-01		20-15-B
				20-15-C
				20-15-d
				20-15-E
Prince George’s		MD-16-02		20-16-A
Talbot		MD-20-01