Report to E.A. Julian, Goldfield Consolidated Mines Exploration Company, 1927. Includes Report on the Lost Channel Gravesl by H.W. Turner, 1922, Report as to the dredgibility of Lost Channel Gravel Mines, Shasta County, California by Charles Helman, 1911, and letter from G.A. Bigelow to W.C. Hammon, 1930, commenting on the Ware report.

The collection consists mostly of slide which Trussell used for classroom use and as part of a simulated field trip. The rest of the collection is consists of flyovers of the northern Sacramento Valley, Fortran database print outs and a folder of mining research.