is there cell phone service at harrisville state park?

Yes!! No trouble at all

Yes. We got good cell service there. We're with Verizon. Be careful about what you put out though... Someone stole my daughter's shorts from the shower house, she set them on the wall... And someone stole one of my pinwheel decorations I put out by our site... Sad...

Yes there is good service and mostly 4g mobile data as well been going there since I was two weeks old I'm 25 now lol I love this place and they just add phone service a few years ago

Yes

Google Fi worked great.

Yup