Tämä jääkauden mannerjään mukanaan kuljettanut siirtolohkare on Etelä-Suomen mitoissa varsin suuri.
Kanadan preerialla sijaitseva 16,500 tonnin kvartsiitti-lohkare Okotok tai Big Rock on maailman tunnetuin siirtolohkare.
This glacial erratic, carried along by the continental ice sheet of the Ice Age, is quite large by Southern Finnish standards.
The 16,500-tonne quartzite boulder Okotok or Big Rock, located on the Canadian prairies, is the most well-known glacial erratic in the world.