There are 2 places named Mount Duncan in Canada.
All places in the world called "Mount Duncan".
Wellington (4)
Windsor (4)
Richmond (3)
Benton (3)
Saint Andrews (3)
Selkirk (3)
Tracadie (3)
Kingston (3)
Victoria (3)
Havelock (3)
Centreville (3)
Sidney (3)
Borden (3)
Princeton (3)
Westport (3)
Milton (3)
Barrière (2)
Cadillac (2)
Cochrane (2)
Elmira (2)
Hampton (2)
Lindsay (2)
Nakina (2)
Saint Peters (2)
Sutton (2)
West Bay (2)
Cavendish (2)
Deer Lake (2)
Fredericton (2)
Kaslo (2)