Recherche dans la collection - Plan of coal mine operated by George Watson, Three Hills, Alta. W. 1/2 and S.E. 1/4 L.S.11, Sec.22, Tp.31, Rg.24, W.4th. Sale No.293. N.E. 1/4 L.S.11. Leased by Chas. Catchpole, Lease No.247. Surveyed Sept. 17th - 18th. 1912. O.S. Finnie, D.L.S., Inspecting Engineer, M.L.& Y. Branch, Dept. of Interior, Ottawa. Extended June 3rd, 1913 ... July 25th, 1916. [cartographic material]