I-90 Speedway is a 3/8 mile high-banked dirt oval located between Hartford and Humboldt, South Dakota. The track is banked 20 degrees in the turns.
New: 2006-01-03
Track:
I-90 Speedway
SR-38
Hartford, SD 57033
Mail:
I-90 Speedway
1913 Highway 14 Bypass
Brookings, SD 57006
605-528-6380 (track)
You may also wish to try using the Yahoo! Search as it may produce current news items.
This is another case of frustrating behavior by online mapping services. The track is actually located on the north side of SD-38, between 460th Avenue and 259th Street, but the best intersection I can come up with is this one, on the wrong side of SD-38. Please look at the terraserver view or else the low-res imagery associated with Google to see where the track really is.
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