I have Verizon and I checked their coverage map but my experience on rural lakes has not been good (like Rayburn) even though the map shows coverage, so can anyone tell me the reality of the signal in the Rough Canyon, Windmill Canyon and San Pedro Canyon areas, especially when it comes to 4G LTE. Thanks!

Had no problem with att while down there. Local call to home from that area. I always had a good signal..

My father in law has ATT as well and he almost always seem's to have coverage. I have Sprint and its sketchy at best.

Markson - check private msgs

I have ATT and am usually good from about marker 9 down to dam and over to san pedro. Not too good at the bottom of Diable East ramp, same goes for about cow creek and up. Will get a text saying welcome to mexico, but have yet to be charged for roaming.

If they do charge and you were state side. Just dispute it by gps and they will drop charges.

T-Mobile works everywhere Mx side and US. No additional charges. Sprint I had didn't work most area's.

I'm sure they roam on another carrier's network. Tmob coverage outside metro areas isn't all that.

I have Verizon and don't know that I could make a blanket statement for any areas, although I would think that you would be good in San Pedro. For sure anything west of the 90 bridge is spotty.

Verizon is fair if the lakes up if it’s 20+ low you’ll have to be in a pretty open area

It's spotty, Mexico last weekend I never had a verizon tower... If you are on the American side, it's much better.