Recherche dans la collection - Plan of N.W. 1/4, Sec. 23 - Tp. 71 - Rg. 1 - W. 5th M., showing traverse of south shore of Athabaska River and location of placer claim applied for by Joseph Brewster. Surveyed 2nd Sep., 1914 by O. S. Finnie, Inspecting Engineer, M. L. & Y. [Mining Lands and Yukon] Branch, Department of the Interior, Ottawa, Ont. [cartographic material]