Second Creek Raceway and Rocky Mountain Speedway (Closed in 2005) (Commerce City, Colorado)

 speedway race track, autocross

Second Creek Raceway was a 1.7-mile paved road course located just west of Denver International Airport. Second Creek is adjacent to the Rocky Mountain Arsenal on the west and Rocky Mountain Speedway (a clay oval) on the north. The entire course can be seen from the stands along the front straight, which is true of very few road courses -- and has producing oil wells on the grounds, another feature uncommon among road courses. Second Creek is built on the site of what was once the Denver Dragway, which was active in the 1960's and 1970's until increasing speeds caused the (uphill) shutoff area to become inadequate. (There's a story, which may be legend, about a dragster losing its chutes and ending up on the south side of 88th Avenue after passing through three catch fences and the porch on the track manager's house.) The first race on the road course, which uses part of the old drag strip for its front straight, was held in 1982
SCR was completely re-paved in 1999 and there were continuous upgrades every year. It was closed forever in October - November of 2005 because some genius decided to build houses out there. There have been plans to "replace" this raceway in another location, but this process has been difficult, as Denver's Urban Sprawl is eating up acreage at an alarming rate.