John,

It is the old Auto/Truck Plaza on Blue Diamond Road, across the street from the Silverton.

Here is the ChipGuide link to older chips: http://www.themogh.org/cg_chip2.php?id=NVLVAT

The 76 Station was bought by T/A (Travel America, I believe) and now operates a Alamo Travel Centers, across the US.

Jim