In article . net,
"Steven P. McNicoll" wrote:

"Hamish Reid" wrote in message
...

Idle question: how common are TRSAs? I can find only one in all of
California, but that doesn't say much about other parts of the US.

I know of TRSAs at Rockford, Illinois, and Muskegon and Kalamazoo, Michigan.

Thanks. I can find only one on the LA sectional, and none at all on the
SF or Klamath sectionals. But then I may have missed a few while
searching here at work....

Hamish