Operation Upshot-Knothole
Nevada Test Site (NTS) in 1953
Shot Annie, Shot Nancy, Shot Ruth, Shot Dixie, Shot Ray, Shot Badger, Shot Simon, Shot Encore, Shot Harry, Shot Grable, & Shot Climax
Veterans may receive $75,000 Nuclear Test Site Cancer Compensation. Find out if you qualify.
Operation Upshot–Knothole was a series of eleven nuclear test shots conducted in 1953 at the Nevada Test Site. Over 21,000 soldiers took part in the ground exercise Desert Rock V in conjunction with the Grable shot.[1] Grable was a 280mm Artillery Fired Atomic Projectile (AFAP) shell fired from the "Atomic Cannon," and was viewed by a number of high-ranking military officials.
Dates: Mar 17 – June 20, 1953
Videos
The 280mm Nuclear Cannon 5/25/53
The 280 MM Gun at The Nevada Proving Ground
Operation Upshot Knothole (1953)
List of Participants
| SHOT | DATE | SITE |
| Annie | 3/17/1953 | NTS |
| Nancy | 3/24/1953 | NTS |
| Ruth | 3/31/1953 | NTS |
| Dixie | 4/6/1953 | NTS |
| Ray | 4/11/1953 | NTS |
| Badger | 4/18/1953 | NTS |
| Simon | 4/25/1953 | NTS |
| Encore | 5/8/1953 | NTS |
| Harry | 5/19/1953 | NTS |
| Grable | 5/25/1953 | NTS |
| Climax | 6/4/1953 | NTS |
Contact Us for More Information
If you believe you were exposed to the effects of Operation Upshot-Knothole and have subsequently been diagnosed with cancer, please call the National Cancer Benefits Center at (800) 414-4328 or use our online form to request more information.
