Back in '08 I was fortunate to experience "The Dark Knight" projected in true 70mm IMAX while visiting Las Vegas. Since then as far as I know all three 70mm IMAX theaters have shuttered-- although I am told the Palms still projects 70mm prints now and again but when I went there and asked the manager all I received was a glazed stare and a punch-drunk nod. It was impossible to to get a definite answer.
I know there are sites I can go to that list the theaters with 3-D 'IMAX' and theaters that have sold their souls and advertise as having digital IMAX as if it is the real thing. But is there a place that will give a no-bs listing of true 70mm IMAX theaters and their locations?