Subject: Operation BUSTER - JANGLE
excerpts:
Shot UNCLE the first underground nuclear detonation at the NPG, was fired with a yield of 1.2 kilotons at 1200 hours on 29 November 1951. The nuclear device was detonated 17 feet beneath the ground in Area 10, Yucca Flat. The initial survey showed onsite fallout north of ground zero.
Exercise Desert Rock III, activities were similar to those of Exercise Desert Rock II. The armed services conducted a troop observer program at Uncle with 202 Army participants. The observers witnessed the shot from a location 9.5 kilometers southwest of ground zero. Two days after the shot, they viewed display areas from buses. About 60 participants from the same Camp Desert Rock sections that had participated at Shot Sugar conducted damage effects tests.
In addition to Desert Rock participants, approximately 650 DOD personnel participated in scientific projects conducted by the two test units at Shot Uncle. About 550 SWC participants performed support activities, including cloud-sampling, courier, cloud-tracking, and aerial survey missions. Perhaps another 125 DOD personnel worked for various units cooordinated by the test organization.