We used T Mobile and had 4 bars. Did you check this site they list recent reports

We had good T-mobile service in the park. We were in and out of service in some of the surrounding area, but once in the park we had a good solid signal.

Very poor. You in an area where it’s bad all around that area for miles and miles. Camp is fabulous!

If I remember correctly we had decent cell phone coverage and we have T-Mobile with 100GB of Mobile Hot spot. You are not far from town and that had excellent coverage. You will love this place, enjoy!