Zion curtain n [Prob after iron curtain on the basis of the Mormon use of Zion to refer to the community of believers]
1 A supposed cultural boundary separating Mormons, or the state of Utah, as a region dominated by Mormons, from the rest of the country.
1969 Carpenter 1.4.32, He can be financially attacked through banning of his books within the Zion Curtain. He can be cast out of his church. And this is why we have a literary wilderness. 1986 Cumberland Eve. Times (MD) 13 Aug 6/6 UT, Despite KCRL’s swipes at the dominant religion, including a punk music program called “Behind the Zion Curtain,” Greene says the station isn’t anti-Mormon. 2003 Santa Fe New Mexican (NM) 9 Feb sec C 5/1, Utes burn Lobos in overtime. . . The loss was the fourth of the road variety for the Lobos, and was their 25th consecutive setback behind the Zion Curtain.
2 A screen or partition, formerly in bars, now in restaurants that serve alcoholic drinks, that separates bartenders from their customers in accordance with Utah liquor laws. UT
2009 Daily Times (Farmington NM) 13 Mar sec A 4/2 UT, Currently, a partition usually made of glass known as a “Zion Curtain” separates bartenders from customers. 2013 NY Times (NY) 17 Nov (Internet) UT, Restaurants can now serve wine, beer and liquor, but most drinks must be prepared behind a partition that has come to be known as the “Zion Curtain.” 2014 Salt Lake Tribune (UT) 12 Mar (Internet) UT, Utah lawmakers heed Mormon church, keep Zion Curtain. . . Sen. John Valentine . . said the Zion Curtain came out of a compromise in 2009 to help make clear the difference between bars and restaurants. “Bars no longer have a membership requirement, no longer have to have plastic barriers that you couldn’t pass drinks across. So bars in Utah are just like bars everywhere else.” But Valentine said the deal included the Zion Curtain to make sure that restaurants were different, and focused on serving food.