Donaldson, J. A.

Descriptive notes (with particular reference to the Late Proterozoic Dubawnt Group) to accompany a geological map of Central Thelon Plain, Districts of Keewatin and Mackenzie (65 M. N W 1/2, 66B, C, D, 75 P E 1/2, 76 A E1/2)

Marion Lake map-area, Quebec-Newfoundland (23 I/13)