[5] Allen, Henry T., Military Reconnaissance in Alaska. Comp. Narr.
Expl. Alas., 415-416, 446-452.
[6] Brooks, A. H., Reconnaissance in the Tanana and White River Basins.
Twentieth Ann. Rept. U. S. Geol. Surv., Washington, 1900, pt. VII,
437-438; also the Geog. and Geol. Alas., U. S. Geol. Surv. Doc. 201,
1906.