and 3 miles of walking trails. Ken Sidey Nature Area is owned by the Adair County Conservation Board. Education Nodaway Valley Community School District serves the community. It was formed on July 1, 2000, by the consolidation of the districts of Greenfield and Bridgewater–Fontanelle. The district's only high school, Nodaway Valley High School, and the districts only elementary school, Nodaway Valley East Elementary, are in Greenfield. Filming location Greenfield was the primary location for the filming of the 1971 satirical comedy film Cold Turkey, produced by Norman Lear, starring Dick Van Dyke. The movie involved a town that accepted a challenge to quit smoking for 30 days. Greenfield also rose to the challenge and went "Cold Turkey" with 166 of its citizens signing Stop Smoking pledges. In 1999, a "Cold Turkey" reunion was held with Lear and several original cast members in attendance. Greenfield and surrounding communities renewed anti-smoking pledges. Portions of the 2009 thriller Peacock were filmed in Greenfield and other towns in Adair County. References External links Official City Website Iowa Aviation Museum Hotel Greenfield The Warren Cultural Center The Freedom Rock City-Data Comprehensive Statistical Data and more about Greenfield Biographical Directory of the United States Congress: Wallace, Henry Agard, (1888 - 1965) Cities in Adair County, Iowa Cities in Iowa County seats in Iowa Populated places established in 1856 1856 establishments in Iowa