I live just a couple miles from town and have no cell phone service at my house. And it isn't even down in a valley. Forget LTE; cell service in general is really spotty in this region.
I'm currently and temporarily staying in central VA and I can't believe how bad internet access and cell service is here. I'm basically in between Charlottesville and Richmond along the I64 corridor and there is no viable broadband here. I have a satellite connection but the latency is too high to do any actual work over it. They finally put in a cell tower close enough to get 1 or 2 bars of LTE if I strategically place the phone near the window. Before I had stand outside just to make a call and even then it was a crapshoot. Now I can at least tether through my phone for internet access. But holy crap I had no idea it was like that down here when I moved. And it's not even that rural of an area. I'm only like 45min away from Richmond or Charlottesville.
OK a bit of self-promotion but this is what we help people all the time. You can either run a hotspot with external antennas or put in a booster. https://www.waveform.com