Keystone Dam Blasting Area Plan1960-01-01unknownhttp://rightsstatements.org/vocab/NKC/1.0/enghttp://congressarchives.org/record/CAC_CC_031_14_0000_3_96The document represents a plan of the Keystone Dam site with detours, routes, and stages specified. Adhered to plan are details of three specific blasting projects, which include the locations, blasting periods, blasting data, and contract numbers. The specified projects include: Contract No. DA-34-066-CIVENG-61-1954, Contract No. DA-34-066-CIVENG-60-1629, Contract No. DA-34-066-CIVENG-61-1380. Annotations (red, pencil) accompany the project details. Legal-size folder accompanies item and contains a preservation copy of the adhered notes as well as Note #1, which detached from item. Area plan (orthographic projection; diazotype, blueline print); 24 x 18 inches.