Dulce Base -- The Plowshare Program: America's Peaceful Nuclear Explosions

Dulce Base -- The Plowshare Program: America's Peaceful Nuclear Explosions

Program Overview

Feature	Detail
Full name	Operation Plowshare
Agency	U.S. Atomic Energy Commission (AEC); later Energy Research and Development Administration (ERDA)
Active period	1957-1975
Number of tests	27 nuclear detonations
Purpose	Investigate peaceful applications of nuclear explosions: natural gas stimulation; mining; excavation; canal construction; harbor creation
Inspiration	The name comes from the biblical passage Isaiah 2:4: "they shall beat their swords into plowshares" -- the atomic bomb repurposed for peaceful ends
Cost	Approximately $770 million
Total yield detonated	Approximately 937 kilotons across all 27 tests
Overall assessment	The program was ultimately abandoned because produced gas and extracted materials were radioactively contaminated, because the seismic effects were problematic, and because the political climate following the Nuclear Test Ban Treaty made the program increasingly untenable

Key Plowshare Tests in the Southwest

Several Plowshare tests occurred in the American Southwest, contributing to the radioactive legacy of the region that underlies the Gasbuggy-cattle mutilation hypothesis:

Test	Date	Location	Yield	Purpose
Project Gnome	December 10, 1961	Carlsbad, New Mexico	3.1 kt	Steam-powered electricity generation from nuclear detonation; first Plowshare test; produced radioactive steam release
Project Gasbuggy	December 10, 1967	21 miles southwest of Dulce, NM	~29 kt	Natural gas stimulation; El Paso Natural Gas Company joint project
Project Rulison	September 10, 1969	Garfield County, Colorado	40 kt	Natural gas stimulation; Austral Oil Company joint project; produced gas too radioactive for commercial use
Project Rio Blanco	May 17, 1973	Rio Blanco County, Colorado	3 x 33 kt	Three simultaneous nuclear detonations for gas stimulation; last major Plowshare natural gas test; similarly contaminated gas

The Radiation Legacy

The Plowshare tests in the New Mexico-Colorado region left a specific radioactive legacy that directly informed the Gasbuggy-Dulce connection:

• The underground detonations created cavities filled with mildly radioactive material
• Long-lived radionuclides (tritium, strontium-90, cesium-137, iodine-131 during the active period) were injected into the local geology
• Groundwater migration of radionuclides from detonation sites is a documented concern for all underground nuclear tests
• Animals grazing on contaminated land absorb radionuclides through water and vegetation, concentrating them in specific organs

The cluster of Plowshare tests in this specific region -- New Mexico and Colorado -- provides a geographic overlay for the cattle mutilation wave of the mid-1970s. The timing (tests 1961-1973; mutilation wave beginning mid-1970s) is consistent with a government monitoring program initiated after evidence of food chain contamination was detected.

Why Plowshare Was Abandoned

The program was formally terminated in 1975 for multiple converging reasons:

• All natural gas stimulation projects produced radioactively contaminated gas unusable for commercial purposes
• The program violated the spirit (if not the letter) of the 1963 Limited Test Ban Treaty
• Growing public opposition to nuclear testing in any form
• The environmental impact of underground nuclear detonations was becoming better understood and more concerning
• The specific promised peaceful applications never materialized economically