W1-92Z0 (EX) EXTRACTED VERSION OPERATION CASTLE Project 3.2 CRATER SURVEY PacificFProving Grounds March=May 1964 Headquarters Field Command Armed Forces Special Weapons Project Sandia Base, Albuquerque;NM June 1955 NOTICE “4 remains classified SECRET — FORMERLY RESTRICTED DATA as of this date. r BA WeRema S, hsecard This is an extract of WT-920, which Extract version prepared for: * Director DEFENSE NUCLEAR AGENCY Washington, DC 20305 4 June 1982 Approvedfor public release; distribution unlimited.