Latitude and longitude of Operation Castle
Operation Castle was a United States series of high-yield (high-energy) nuclear tests by Joint Task Force 7 (JTF-7) at Bikini Atoll beginning in March 1954. It followed Operation Upshot-Knothole and preceded Operation Teapot.
Latitude: 11° 41' 29.99" N
Longitude: 165° 16' 11.40" E