Ashford University Field is a stadium in Clinton, Iowa. It is primarily used for baseball, and is the home field of the Clinton LumberKings minor league baseball team of the Midwest League. It was built in 1937 and its capacity is 4,000 fans.
The construction of Riverview Stadium began in 1935 and completed in 1937 as a Works Progress Administration project, and it beckoned baseball's return after a 19-year hiatus in the city. The Clinton Owls, a Brooklyn Dodgers affiliate in the Three-I League, christened the stadium with a first-place finish that season. The stadium was renamed Alliant Energy Field in 2002 and has undergone several renovation projects in recent years: replacement of entire field lighting system, new home clubhouse, installation of new drainage tiles, expansion of both dugouts and the renovation of covered batting cages. In 2006, the stadium underwent a $4.2 million renovation. On October 1, 2011 the stadium was renamed Ashford University Field.
In 2009, the ballpark played host to the Midwest League All-Star Game as the East All-Stars defeated the West All-Stars 6–3 in front of 2,561 fans.
Features to the stadium include the Leinenkugel's Lumber Lounge party deck located in right field, the Coors Light Picnic Pavilion and berm in left field, the Dr. Pepper Picnic Garden party area along the left field foul line and bullpen.