I had inquired last year about the location of this casino but had no luck!?!? Being that Tahoe is pretty well documented I was surprised no one, here on the chipboard at least had not heard of it until I read a mention of it in "Casinos and their Ashtrays" by Art Anderson, 1994.
It reads "corner of HWY 50 and Kahle Dr."

Sky Harbor, 1952-1954
Stardust Casino, 1956-1957
South Shore Club, 1958-1973
Gary's Casino, 1976-1978
then South Tahoe Casino and finally Stagecoach Casino were the last two in the bldg. before it was torn down to make way for a medical center in the early 80's.