PIR

Portland International Raceway is a motorsport facility in Portland in the U.S. state of Oregon. It is part of the Delta Park complex on the former site of Vanport, just south of the Columbia River. It lies west of the Delta Park/Vanport light rail station and less than a mile west of Interstate 5.
  • Location: Portland, Oregon, U.S.
  • Capacity: 30,000
  • Owner: City of Portland
  • Opened: June 1961
  • FIA Grade: 2
  • Operator: E. C. Mueller
  • Broke ground: 1960
Data from: en.wikipedia.org