An unexploded 40 millimeter grenade found by a camper in the Dunebuggy Flats camp area at the Imperial Sand Dunes Recreation Area was successfully (and safely) detonated by the Imperial County Arson and Bomb Unit on Saturday, November 5, 2011. The camper who found the device made the mistake of taking it back to his camp. Once park rangers were advised of the situation, the area was flagged to keep other visitors away, and the Bomb Unit was called. Technicians from the Bomb Unit determined that the device needed to be disposed of onsite, and destroyed it with C-4 plastic explosive.
http://www.desertusa.com/dusablog/unexploded-grenade-found-by-a-camper-imperial-sand-dunes-ra.html
