Travel
Many traditional GPS systems have the address/directions wrong to get to the venue.
The simplest thing to do is get yourself (via GPS or traditional map) to 49 Prospect Street, Harrisville, NH which will take you to the base of Cobb Hill Road (on the left), where you will see signs for Cobb Hill Estate that you can follow.
After you turn off Prospect Street onto the gravel mountain road, follow signs for Cobb Hill Estate over the next 1.5 miles till you arrive at the venue.