This tartan was designed by Ann Woollings and Odette Catt and named the Northern Ontario tartan. It was registered with CIPO in 1959.
The tartan was designed to represent the colours of the region:
Grey represents the local rocks
from which nickel and iron were mined,
White for the snow,
Yellow for the local gold and sunshire,
Green for the forests and fields,
Blue for the lakes and rivers, and
Red to represent the First Nations.