When I first saw the reverse of this postcard, I thought about all of the larger older homes located along Amwell Road in the vicinity of the village of Neshanic.
It didn't take too long to realize that there was no place like this near Neshanic. It then occurred to me that the tavern didn't need to be near Neshanic at all - that's just a postal address. I live near the intersection of Beekman Lane and Triangle Road, yet for the first ten years we were here - before the Hillsborough 08844 post office was established, our postal address was Neshanic Station! So forget Neshanic.
After this revelation, I remained stumped. It was when I sought the assistance of a long-time resident that I realized where I had gone wrong: I had forgotten the true, original route of the historic Amwell Road! The road I had been searching is really the Amwell Road Bypass, constructed about 25 years ago between the intersection of East Mountain Road and Marshall Road, and shown on the map below.
To find the Sourland Mountain Tavern, we need to traverse the old Amwell Road, which today has been renamed to become extensions of both East Mountain Road and South Branch Road, and is shown on the map below.
Once I knew where to look, it was easy to find this private home near Foothill Acres on East Mountain Road.
For some reason, I think I could go for a spaghetti and chicken dinner right about now, how about you?