Quoting from the HillCumorah.org website:
Come feel the Savior's love
Experience one of the world's great outdoor theatrical productions. Each July, seven evening performances are presented on the beautiful Cumorah hillside next to the Visitors' Center. A beautiful story on an enormous 10 level stage, twelve-tower lighting, state-of-the-art sound system, Hollywood special effects, and a costumed cast of over 650 provide a truly spectacular show.Quoting further from the website:
It all began in the early 1920's when a small group of missionaries from New York City gathered for the Cumorah Conference at the Joseph Smith Farm to celebrate Pioneer Day, the day when Brigham Young first entered the Salt Lake Valley in 1847. In July of 1934, the conference was moved from the Farm to the Hill Cumorah.
Today the Pageant, with its incredible staging, lighting, special effects and costuming is still carefully designed to keep its message of Jesus Christ's love for us both simple and pure. The opening processional of the entire costumed cast through the audience is quite similar to the beginning of many of the great medieval pageants.We enjoyed three nights of watching the Pageant this year.