The Manti temple site was dedicated as President Brigham Young traveled back to Salt Lake after dedicating the newly finished St George Temple. In the same month he also traveled to Cache Valley to dedicate the site for the Logan Utah Temple.

The Manti Utah Temple was built on a rattlesnake-infested site, known as the Manti Stone Quarry. Once Brigham Young designated the site for a temple, it became known as Temple Hill. The quarry's stone, Manti oolite, is the same cream-colored stone used for the temple exterior.

Announcement: 25 June 1875
Groundbreaking and Site Dedication: 25 April 1877 by Brigham Young
Public Dedication: 21–23 May 1888 by Lorenzo Snow
Rededication: 14–16 June 1985 by Gordon B. Hinckley
Rededication: 21 April 2024 by Russell M. Nelson
Ordinance Rooms: Four instruction rooms, nine sealing rooms, and one baptistry
Total Floor Area: 74,792 square feet | 6,948 square meters
Height: 179 feet | 54.6 meters

On a visit to Cache valley in 1863 President Young told the youth “you will have the privilege of going into the towers of a glorious Temple built unto the name of the Most High (pointing in the direction of the bench), east of us upon the Logan bench; and while you stand in the towers of the Temple and your eyes survey this glorious valley filled with cities and villages, occupied by tens of thousands of Latter-day Saints, you will then call to mind this visitation of President Young and his company."

Announcement: 6 October 1876

Site Dedication: 18 May 1877 by Orson Pratt

Groundbreaking: 18 May 1877 by John W. Young

Dedication: 17–19 May 1884 by John Taylor

Public Open House: 5 February–3 March 1979

Rededication: 13–15 March 1979 by Spencer W. Kimball

Ordinance Rooms: Four instruction rooms with separate veil room, eleven sealing rooms, and one baptistry

Total Floor Area: Originally 59,000 sqft now: 119,619 square feet | 11,113 square meters

Height: 170 feet | 51.8 meters

A Temple in St George was announced in November 1871 - Salt Lake Temple has been going for 24 years at this point. Logan and Manti had not been announced yet. just 1100 people lived in the area who were sent down to try and grow cotton. They knew that had failed, but President Young saw the opportunity to build a community around the temple.

Announcement: 31 January 1871

Groundbreaking and Site Dedication: 9 November 1871 by Brigham Young

Preliminary Dedication: 1 January 1877 by Wilford Woodruff, Erastus Snow, and Brigham Young

Dedication: 6–8 April 1877 by Daniel H. Wells (with Brigham Young presiding)⁠

Rededication: 11–12 November 1975 by Spencer W. Kimball

Rededication: 10 December 2023 by Jeffrey R. Holland

Total Floor Area: 143,969 square feet | 13,375 square meters
Height: 175 feet | 53.3 meters

I just want to give a shout out to the website churchofjesuschristtemples.org it is a great encyclopedia of information and pictures, if any listeners are curious about learning more about any of these temples. I use it a lot to prepare my part of the podcast, as well as the church sites. But shout out to the guy who just maintains this site as a labor of love, his name is Rick Satterfield.