AG, in the 1920s the four families involved in Reno, we're the Genovese, Chicago, Cleveland, and Buffalo. Buffalo and Cleveland went to war over this. A lot of families operated in reno, as it was a get away city in a state that allowed gambling. Las Vegas did not become big till the Flamingo, then the city took off in the 1950s. Many families invested in Las Vegas as it was closer to Los Angeles, which had a lot of rich people. By the late 1970s, the gambling was not what it once was as Reno was overshadowed by Las Vegas, the families that still had interests in the casinos in Lake Tahoe and Reno, were Chicago, Cleveland, Colorado, Dallas, Detroit, San Jose, and San Francisco. I skipped a lot of history, Bonanno and Profaci had interests till the 1960s. SJ and SF would not have gotten a foothold had it not been for Frank Costello.