BROOKS, A.H. - A reconnaissance from Pyramid Harbor to Eagle City, Alaska, including a description of the copper deposits of the upper White and Tanana rivers.

1900. 21st Annual Report United States Geological Survey , Part II; pp. 331-391, 1 fig. 11 plts. h.t. with phot. maps & sections, some col. and incl. large fold. map loosely inserted. Plain new wrps. stapled extract, very good, 4to. This is the original 1900 print edition, not a later or modern reprint.