A striking example of involutions is to be seen near Manitouwadge, Ontario. The involutions are exposed in a road-cut through laminated silty sand with clay partings.
The involuted zone, 12–18 inches thick, lies about 3–4 feet below the present surface of the ground. The contact between the involuted zone and the slightly disturbed sediments beneath is sharp. The upper limit of the zone is not distinct.
The similarity between the Manitouwadge involutions and the deformation of layered sediments covering a decaying ice body in the Eskimoan ice-cellar examined by Müller (1959, p. 90) is offered as evidence that one way in which involutions are formed is through the deformation consequent upon the formation and decay of ice bodies in the soil.