"Shasta Dredging Co." . . "Shasta Dredging Company." . . . . "Shasta County (Calif.)" . . . . "Correspondence, legal and business papers, maps, and blueprints of the Shasta Dredging Co. of Shasta County, California. Material represents the written record of day to day operations of the company including its diggings, acquisitions, and financial affairs."@en . . . . . . . . . "Shasta Dredging Company records"@en . . .