Question: Operation Plowshare occurred in what US state?
Context: Nuclear Explosions for the National Economy (sometimes referred to as "Program #7") was a Soviet program to investigate peaceful nuclear explosions ("PNEs").  It was analogous to the US program "Operation Plowshare". Operation PBFORTUNE, also known as Operation FORTUNE, was the name of a covert United States operation to overthrow the democratically elected Guatemalan President Jacobo Árbenz in 1952.  The operation was authorized by US President Harry Truman and planned by the Central Intelligence Agency.  The United Fruit Company had lobbied intensively for the overthrow because landmark land reform enacted by Árbenz threatened its economic interests.  The coup attempt was also motivated by US fears that the government of Árbenz was being influenced by communists.  It involved providing weapons to the exiled Guatemalan military officer Carlos Castillo Armas, who was to lead an invasion from Nicaragua.  The coup was planned with the knowledge and support of Anastasio Somoza García, Rafael Leonidas Trujillo and Marcos Pérez Jiménez, the US-backed right-wing dictators of Nicaragua, Dominican Republic and Venezuela respectively, as well as the United Fruit Company.  However, the US State Department discovered that details of the plan had become too widely known.  US Secretary of State Dean Acheson was worried that the coup attempt would damage the image of the US, which had committed to a policy of non-intervention, and so terminated the operation.  Operation PBFORTUNE was a precursor to Operation PBSUCCESS, the covert operation that toppled Árbenz and ended the Guatemalan Revolution in 1954. Project Gnome was the first nuclear test of Operation Plowshare and was the first continental nuclear weapon test since Trinity to be conducted outside of the Nevada Test Site.  It was tested in southeastern New Mexico, approximately 40 km southeast of Carlsbad, New Mexico. Storax Sedan was a shallow underground nuclear test conducted in Area 10 of Yucca Flat at the Nevada National Security Site on July 6, 1962 as part of Operation Plowshare, a program to investigate the use of nuclear weapons for mining, cratering, and other civilian purposes.  The radioactive fallout from the test contaminated more US residents than any other nuclear test.  The Sedan Crater is the largest man-made crater in the United States, and is listed on the National Register of Historic Places. Sedan Crater is the result of the Sedan nuclear test and is located within the Nevada Test Site, 12 mi southwest of Groom Lake, Nevada (Area 51).  The crater was listed on the National Register of Historic Places on March 21, 1994.  The crater is a man-made object that can be seen from earth orbit with the unaided eye. Project Gasbuggy was an underground nuclear detonation carried out by the United States Atomic Energy Commission on December 10, 1967 in rural northern New Mexico.  It was part of Operation Plowshare, a program designed to find peaceful uses for nuclear explosions. Humberto Leal García, Jr. (January 16, 1973 – July 7, 2011) was a Mexican inmate on death row in the US state of Texas for the May 21, 1994, rape, torture, and murder of Adria Sauceda in San Antonio.  Despite calls from US President Barack Obama, the US State Department and Mexico on Texas for a last-minute reprieve, Leal was executed by lethal injection as scheduled on July 7, 2011. Greater Boston is the metropolitan region of New England encompassing the municipality of Boston, the capital of the US state of Massachusetts, and the most populous city in New England, as well as its surrounding areas.  The region forms the northern arc of the US northeast megalopolis and as such, Greater Boston can be described as either a metropolitan statistical area (MSA), or as a broader combined statistical area (CSA).  The MSA consists of most of the eastern third of Massachusetts, excluding the South Coast region and Cape Cod; while the CSA additionally includes the municipalities of Manchester (the largest city in the US state of New Hampshire), Providence (the capital and largest city of the US state of Rhode Island), Worcester, Massachusetts (the second largest city in New England), as well as the South Coast region and Cape Cod in Massachusetts. Project Rulison, named after the rural community of Rulison, Colorado, was an underground 40-kiloton nuclear test project in the United States on September 10, 1969, about 8 mi SE of the town of Grand Valley, Colorado (now named Parachute, Colorado) in Garfield County.  The location of "Surface Ground Zero" is .  The depth of the test cavity was approximately 8,400 feet below the ground surface.  It was part of the Operation Mandrel weapons test series under the name Mandrel Rulison, as well as the Operation Plowshare project which explored peaceful engineering uses of nuclear explosions.  The peaceful aim of Project Rulison was to determine if natural gas could be easily liberated from underground regions.  This site remains under active monitoring by the U.S. Department of Energy Office of Legacy Management. State Road 524 (SR 524) is the designation of a state road in the northern section of the US state of Indiana that runs between U.S. Route 24 (US 24) and Salamonie River State Forest, via Lagro.  SR 524 travels some of its route as an east–west and the rest as a north–south road.  The highway was first designated in late 1930s or early 1940s running south out of Largo.  An extension occurred during the early 2000s that added the east–west segment, when US 24 was moved to its modern route in the area.
Answer: Nevada