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PLATE XII.

A. Exposure of bituminous sand on the north side of Steepbank river, 34 miles
from its mouth, illustrating typical massive structure and cleavage of many
of the high-grade deposits. (Pages 67 and 87.)

B. Exposure on the north side of Steepbank river, 2 miles from its mouth, showing
low-grade and banded bituminous sand, overlying Devonian limestone. (Pages 67 and 87.)