- 1,600
- Brunswick, Frederick County, Maryland
- nascar61799
Full Circuit: 1.967 miles (3.166 km).
Location: Portland, Oregon, USA.
Opened: 1960.
http://en.wikipedia.org/wiki/Portland_International_Raceway
http://www.racingcircuits.info/north-america/usa/portland-international-raceway.html#.VISik8stCt8
http://portlandraceway.com/
Click here for other American race tracks:
Auto Club Speedway
Hallett Motor Racing Circuit
Las Vegas Motor Speedway
Michigan International Speedway
Palmer Motorsports Park
Pikes Peak International Raceway
Texas World Speedway
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