caused a 6000-foot diameter, 240-foot deep crater in the lagoon off Nam Island. BRAVO, a surface burst H-bomb shot, deposited radioactive fallout unevenly throughout Bikini Atoll causing the contamination of Bikini in particular. In addition to BRAVO, the testing of Union and Yankee (Site D) and Cherokee (Site E) caused numerous obstructions (test towers, etc.) that lie on the bottom near Lomilik Island (Figure C-1, 8-4). crater was recently visited and cursorily inspected (reference Appendix E, Environment, this Report). has occured. Island by a The BRAVO diving team Very little regeneration The remnants of the Union, Yankee and Cherokee tests have not been reinspected recently. 2. RESURVEY OF THE BAKER SITE AND SUNKEN SHIPS 2.1 General The problem. loaded 11 They guns sunken are and ships of Operation Crossroads an attractive stores nuisance of ammunition. and they Because of present a potential sank carrying their fuel, potential as a long-term problem, a brief summary of their status as of 1947 is presented here. The Bikini Scientific Resurvey (reference C-1) originated by the Joint Chiefs of Staff in May 1947 with the general purpose of completing... “studies and projects begun Crossroads." The Department Survey, Department the Navy of in 1946 was Interior, in connection supported and by the with operations U.S. Geological the National Museum accomplishing the resurvey. -..The Bikini Scientific Resurvey "...would entail the collection of biological specimens; diving on target ships to recover specific instruments and to make certain structural examinations; the taking of water and bottom samples and cores; and radiological studies of the lagoon, the surrounding islands, and organisms, 5000083 C-2 in