This cache is a lock-n-lock hidden off the Pasture Loop (PL) trail which connects at both ends to the white-marked Roaring Brook (RB) trail. The trailhead coordinates are for the northern junction of the PL trail with the RB trail. You can access the RB trail from the campground or from the yellow-marked Pelton Pond trail. The parking coordinates are for the PeltonPond parking lot. You may find a Fahnestock trail map at https://parks.ny.gov/parks/attachments/ClarenceFahnestockTrailMap.pdf
The cache name will be clear once you reach GZ. "Our" ancestors worked hard to farm this area. The results are all around you at GZ.