There is one place named Halcyon Mountain in Canada.
All places in the world called "Halcyon Mountain".
Wellington (4)
Windsor (4)
Victoria (3)
Kingston (3)
Havelock (3)
Sidney (3)
Centreville (3)
Princeton (3)
Borden (3)
Westport (3)
Milton (3)
Richmond (3)
Benton (3)
Saint Andrews (3)
Selkirk (3)
Tracadie (3)
Radisson (2)
Saint Louis (2)
Stanley (2)
Waterloo (2)
Alma (2)
Boundary (2)
Chipman (2)
Durham (2)
Grand Falls (2)
Laflèche (2)
Morden (2)
Rosedale (2)
Seaforth (2)
Tiverton (2)