[2] Three 33-kiloton nuclear devices were detonated nearly simultaneously in a single emplacement well at depths of 5,838, 6,230, and 6,689 feet (1,779, 1,899, and 2,039 m) below ground level.

This was the third and final natural-gas-reservoir stimulation test in the Plowshare program, which was designed to develop peaceful uses for nuclear explosives.

The United States Atomic Energy Commission conducted the test in partnership with CER Geonuclear Corporation and Continental Oil Company.

To reduce emplacement costs, the devices were very narrow in diameter, less than 200 millimetres (7.9 in) wide.

[3] This article incorporates public domain material from websites or documents of the United States Department of Energy.