This is located on the Thompson Bridge Road near Pike's Cemetery, and can be accessed from Pike's Corner off Route 43. The Thompson Bridge Road sign is missing and can be confused with the end of someone's driveway. Pike's Cemetery is located a short distance down this road with a small clearing for parking just after the cemetery. You may also want to find Thomspon Bridge Cache (GC4V7CG) which is just down the hill from the parking area near the historic bridge.
The road along here and bridge were laid out to be in Starks and were built by the Town of Starks right along the Industry line. A few years later, the Starks-Industry line was resurveyed , corner to corner, and the road was found to be at least partially in Industry which put at least part the bridge also into Industry.
Please remember that cemeteries are off limits at night. Any time between 1/2 hour after sunset and 1/2 hour before sunrise the following day is trespassing and a Class E crime. Congratulations to Atracker01 for the FTF (thier first FTF at that)