Kennewick , is a city located in Benton county along the Columbia River Plateau region of Washington State. Along with the cities of Pasco and Richland, Kennewick is known for being the largest and most populous city within the area known as the "Tri-Cities" of Washington. The "Tri-Cities" area is the fourth most populous metropolitan area within Washington State; behind Seattle, Spokane and Tacoma.
Kennewick and the greater Tri-Cities region draws a great deal of their cultural influence from having a past that was heavily enriched by the Cold War. In nearby Richland, the Hanford Nuclear Site is the home to many historical landmarks, as well as the world's first full scale nuclear reactor. The atomic bomb that was dropped on Nagasaki, Japan in 1945 contained Hanford produced plutonium. Today, the nuclear site has changed its mission from plutonium enrichment to environmental clean up and restoration. In modern times, agriculture has been a major factor in the area's economy. Wheat is the most widely grown crop in the region, as well as fruit such as apples, cherries, and grapes (the region is home to more than 160 wineries). This is due mainly to the high quality of the region's soil and the ease of irrigation made possible by three nearby rivers (Columbia, Snake and Yakima Rivers).