O'Harra Stadium, College football stadium in Rapid City, United States.

O'Harra Stadium is a college sports facility in Rapid City with seating for approximately 4,000 spectators at an elevation of about 3,180 feet (970 m). The grounds feature a three-tiered tailgating terrace, fixed seating sections, and an artificial turf field surrounded by a track that hosts multiple athletic events.

The facility opened in September 1938 after construction by Works Progress Administration workers and student volunteers transformed a former garbage dump into a functional athletic venue. The project began in 1931 when students received a holiday in May to help level the ground, launching the effort under President Cleophas O'Harra's leadership.

The stadium serves as the home field for the South Dakota Mines Hardrockers football team, where students and fans gather to watch NCAA Division II matches throughout the season.

The field runs northwest to southeast at about 3,180 feet (970 m) above sea level, so the air is thinner than at lower altitudes. A running track circles the artificial turf, and the three-tiered terrace opposite the main seating holds 250 paved parking spots where spectators tailgate and watch from their vehicles. The campus location southeast of the SDSM&T grounds is reached from Rapid City's street network.

The three-tiered terrace on the east side holds 250 paved parking spots, so spectators can tailgate and watch games from their vehicles. The field itself is named for George and Nancy Dunham, two alumni boosters, a name added in 2004.