There is one place named Ulkan in Sweden.
All places in the world called "Ulkan".
Näs (17)Boda (17)Berg (16)Sandviken (16)Berga (14)Lund (14)Haga (13)Torp (13)Bäck (13)Näset (13)Broby (12)Sandvik (12)Åsen (12)Norrby (11)Näsby (11)Kulla (11)Mo (11)Ön (10)Viken (10)Kullen (10)Heden (10)Backa (10)Åby (10)Strand (10)Hov (10)Råby (10)Holmen (10)Dalen (9)Sund (9)Vallby (9)