Their area churches are called "stakes". One of my genealogy surprises was to learn that ggg grandma Elizabeth Downing turned Mormon, and was, in fact, living in Nauvoo, IL, when Joseph Smith and his brother met their ends. She had six children. Four continued being Mormon, two did not, including, fortunately for me, gg grandpa John B. Downing. Anyway, turned out that the two girls who continued the 'faith' removed to Utah, and are both buried in St. George, not much further than 100 miles from me. Yep, visited and photographed both gravesites. Absolutely amazed me.