What the records say
- When
- 10 Sep 1969
- Kind
- Nuclear test
- Yield (kt)
- 40
- Where
- Grand V Co
- Coordinates
- 39.50° N, 107.88° W
- Yield kt
- 40
- Type
- shaft
- Purpose
- peaceful nuclear explosion
- Body wave magnitude
- 5
- Reported by
- ISC
Project Rulison
Late 1960s U.S. nuclear test in Garfield County, Colorado
Project Rulison, named after the rural community of Rulison, Colorado, was an underground 40-kiloton nuclear test that took place on September 10, 1969, about 8 miles (13 km) SE of the town of Grand Valley, Colorado in Garfield County.
From Wikipedia, CC BY-SA · Read the article
The source
- Nuclear explosions 1945–1998SIPRI / FOA, via TidyTuesdayNo licence stated