Actually there is a decent LFS up near SLC. It is at
4010 Highland Dr # 1
Holladay, UT 84124-1603
They have a couple display tanks set up by the local Plant club, and have cool plants every time I am in there. I'm not up there enough to remember what day they get the order in, but the selection has been pretty good even when I haven't hit it on order day.
Here's the club website http://www.natureaquariumclubofutah.com/