Final answer:
The Mormons were able to survive in Utah's high desert due to seeking isolation from persecution, making a treacherous journey, and establishing a tight-knit community.
Step-by-step explanation:
The Mormons were able to survive in the high desert of Utah due to a combination of factors. Firstly, they sought a place isolated from religious persecution and found Utah to be a safe haven. Secondly, under the leadership of Brigham Young, they made a treacherous journey along the Mormon Trail to reach Utah, demonstrating their determination and resilience. Finally, the Mormons established a tight-knit community and utilized innovative methods like handcart migration to overcome the challenges of living in a harsh environment.