M
- Maine--Appledore Island. (13)
- Maine--Baileys Island. (1)
- Maine--Bar Harbor (Town) (1)
- Maine--Bar Harbor. (17)
- Maine--Bath. (6)
- Maine--Boon Island. (1)
- Maine--Cape Elizabeth. (8)
- Maine--Casco Bay. (1)
- Maine--Cushing Island. (13)
- Maine--Dover Bluff. (1)
- Maine--House Island. (1)
- Maine--Kennebunk River. (7)
- Maine--Kennebunk. (10)
- Maine--Kennebunkport. (8)
- Maine--Kittery Point. (9)
- Maine--Kittery. (21)
- Maine--Little Diamond Island. (3)
- Maine--Lubec. (1)
- Maine--Mount Desert Island. (15)
- Maine--Neddick, Cape. (12)
- Maine--Norwood Farms. (1)
- Maine--Old Orchard Beach. (25)
- Maine--Orr's Island. (4)
- Maine--Peak Island. (7)
- Maine--Piscataqua River. (1)
- Maine--Poland Spring. (34)
- Maine--Portland. (99)
- Maine--Presumpscot River. (4)
- Maine--Roaring Rock. (1)
- Maine--South Portland. (1)
- Maine--White Mountains. (5)
- Maine--York Beach. (20)
- Maine--York Harbor. (3)
- Maine--York River. (10)
- Maine--York. (59)
- Maine. (432)
- Martinique--Saint-Pierre. (4)
- Martinique. (9)
- Maryland--Annapolis. (86)
- Maryland--Baltimore. (83)
- Maryland--Berlin. (1)
- Maryland--Brady. (1)
- Maryland--Cabin John Bridge. (3)
- Maryland--Chesapeake and Ohio Canal. (7)
- Maryland--Chevy Chase. (3)
- Maryland--Cumberland Valley. (1)
- Maryland--Deer Park. (15)
- Maryland--Great Falls of the Potomac. (1)
- Maryland--Hagerstown. (2)
- Maryland--Jones Falls. (1)
- Maryland--Monocacy River. (1)
- Maryland--Oakland. (2)
- Maryland--Patapsco River. (1)
- Maryland--Pen Mar. (37)
- Maryland--Pen-Mar. (37)
- Maryland--Point of Rocks. (2)
- Maryland--Potomac River. (5)
- Maryland--Rawlings. (1)
- Maryland--Relay. (2)
- Maryland--Royer, Lake. (3)
- Maryland--Sykesville. (7)
- Maryland--Westminster. (1)
- Maryland--Williamsport. (7)
- Maryland. (287)
- Massachusetts--Adams. (11)
- Massachusetts--Amherst. (25)
- Massachusetts--Andover. (6)
- Massachusetts--Annisquam River. (1)
- Massachusetts--Berkshire Hills. (18)
- Massachusetts--Beverly. (7)
- Massachusetts--Boston Bay. (2)
- Massachusetts--Boston. (465)
- Massachusetts--Brookline. (6)
- Massachusetts--Cambridge. (112)
- Massachusetts--Charles River Reservation. (4)
- Massachusetts--Charles River. (23)
- Massachusetts--Charlestown Navy Yard. (10)
- Massachusetts--Cohasset (Town) (3)
- Massachusetts--Concord River. (2)
- Massachusetts--Concord. (56)
- Massachusetts--Dalton. (6)
- Massachusetts--Danvers. (11)
- Massachusetts--Dedham. (3)
- Massachusetts--Deerfield River. (1)
- Massachusetts--Deerfield. (3)
- Massachusetts--East Longmeadow. (2)
- Massachusetts--East Northfield. (16)
- Massachusetts--Easthampton. (3)
- Massachusetts--Egypt. (2)
- Massachusetts--Fall River. (14)
- Massachusetts--Florida. (3)
- Massachusetts--Fort Point Channel. (1)
- Massachusetts--Gallows Hill. (1)
- Massachusetts--Gay Head. (2)
- Massachusetts--Georges Island. (1)
- Massachusetts--Gloucester. (133)
- Massachusetts--Greylock, Mount. (12)
- Massachusetts--Hancock. (4)
- Massachusetts--Haverhill. (4)
- Massachusetts--Holyoke Range. (5)