In CA I know
Revelation Raceway closed the ON-ROAD Track and made a HUGE Off-Road Track.
Tamiya has either Cloased or IS Closing
So-Cal is supposed to close as of LAST weekend.
Showtime/Metro 'reopened' their OVAL track in '07 and Full Throttle's facility I believe opened in '07.
So it seems we loose a few, and gain a few every year...but over the past 22+ years we've seen that a lot.
I've seen just in Calif.
One Stop - Cerritos CA
Yorba Linda R/C - Yorba Linda CA
Bob and Jim's Carpet - Riverside CA
El Cajon R/C Speedway - El Cajon CA
The Ranch Pit Shop - Pomona CA
Perris R/C Speedway - Perris CA
Old RACERS HAVEN - Bakersfield CA (there's a new track there now)
HobbyCrafters - Pismo Beach CA
Central Coast R/C Raceway - Santa Maria CA
Revelation Raceway - Montclair CA
So-Cal R/C Raceway - Coasta Mesa CA
Delta R/C - Antioch CA (Not sure if they race anything up there..but their oval closed)
The BIG "O" - Redwood City CA
Salinas R/C Club - Salinas CA
and I know there are a lot more I'm missing...most of which are Off-Road tracks.
R/C Racing since 1985 ~ Santa Maria, CA (Central Coast)
2001-2012 - South-West Tour R/C Oval Series - R.I.P.
...will the SWT be revived? Time will tell, but we ARE returning to the VELODROME in 2016