This area by Little Cottonwood Canyon has poor to no cell service. AT&T / Sprint PCS / Qwest cell phones have worse service in this area.

No reception in store and school which are all in this area. Outside reception is below average.

AT&T GSM network what a joke! Just plain poor with no hope of getting better.

I've tried Sprint in Salt Lake and service was okay, but nothing too special. A few dead spots I found with Sprint in the Salt Lake Valley: Union Middle School (no service in most part of the school), Hillcrest High School(very weak), Gateway Mall (all or nearly all stores are dead), the ZCMI Center has lots of dead spots for Sprint, drving on 7th East from Fort Union towards 6600 South calls drop nearly every time right before you cross I-215, Big Cottonwood Canyon is totally dead right after you enter the canyon (Verizon's digital service reaches much further into the canyon), also in Millcreek Canyon Sprint service is gone right away while Verizon reaches in very far (and so does AT&T TDMA) and there are many more. Sprint coverage in the Salt Lake Valley is all right, they have a lot of room for improvement though! I'd recomend Verizon for Utah, Cricket, though, is also quite strong here in the Salt Lake Valley. I never had a network busy message when using Cricket. Only thing to be carefull of is that they do not work at the ski areas and don't even provide continous service along I-80 to Park City.

Calls were dropped very frequently (more than half the calls). I had SprintPCS in the same area and had very few dropped calls and have now switched to AT&T and so far, so good.