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Project Rulison Test Site

Colorado USA

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“40-kiloton nuclear device test site”

The Rulison site is located in west-central Colorado, approximately 40 miles from Grand Junction (Figure 1-1). A 40-kiloton nuclear device was detonated in the Williams Fork Formation of the Mesaverde Group on September 10, 1969 (DOE, 2000a). The device was detonated 2,568 m below the ground surface in emplacement hole Hayward 25-95A, also known as Well R-E (Figure 1-2). The surface elevation at the emplacement hole is 2,485 m above mean sea level, and it is located within Lot 11, NE 1⁄4, SW 1⁄4 of Section 25, T7S, R95W, 6th Principal Meridian, Garfield County, Colorado. This is at latitude 39.40566 and longitude -107.948631, relative to North American Datum 1983. A site evaluation hole, Hayward 25-95, also known as Well R-EX, is located 95 m to the southeast. 

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Reviewed by
Tatiana Danger

  • Road Warrior
  • 1,169 Reviews
  • 770 Helpful
August 31, 2014
Rated 3.0

This site is just 40 miles outside Grand Junction. In 1969 a 40-kiloton nuclear device was detonated over 2,500 meters below the ground here.

1 person found this review helpful

Reviewed by
Nick White

  • 1 Review
  • 0 Helpful
August 15, 2018

Tried to visit, but the road was gated off with a pad lock. May be private land now.

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Project Rulison Test Site

Colorado
USA

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