eM ALOO Central Fites MRA-7 Project 58 & 59 NTS (FY 58) Indicates planning for safety shots at NTS in Feb-Mar 58, called Cemssernceresree Te "Project S8A-NTS", only LRL devices. The LASL portion "58 Project ~--NTS" was done In Dec 37 and looked at properties of two proposed designs upon one point detonation. LRL carried out 58A in Feb & Mar with the Venus and Uranus tests, respectively. M & R Record Center "635 NEVADA TEST SITE, 1/1/58 - 12/31/65 " Folder . 7 BP Here ts documentation of a visit to the Nevada Test Site by French nuclear experts that was classified in febuof28, The stated purpose of the Trip. Is to brief the experts on operational and safet y aspects of U.S. full scale “puclear weapons testing at the NTS. The visit was sponsored jointly by the DOD and AEC and there was the Intent _to limit the discussion primarily to the NTS with only a passing mention of the EPG. Among those briefing the group was JIm Reeves: and Al Graves. , M & R Records Center —_ - 471,6-High Altitude Nuclear Effects" Folders covering 1958 through 1971, one folder classified, theother unclassified. G 1? } ° These folders should be used in conjunction with those entitled “Upper Atmospheric Physics Group" since there are a number of cross-references and some obvicus cross-fertilization in these two fields. Reference to March1958 correspondence on a meeting or meetings held by AFSNP, forerunner ofDASA, with participation by ARPA, DDR&E, and the AEC on the matter of planning for a high altitude detonation. \