Brigham Young chose the Great Salt Lake valley because of its _________

Question

(9 letter word)

http://unicomm.byu.edu/about/brigham/
Scroll down and go to page 4.

http://www.pbs.org/weta/thewest/people/s_z/young.htm

http://en.wikipedia.org/wiki/Brigham_Young
Be sure to scroll all the way down and look into the Sources and External Links.