Directions: Heading north on Hudson Terrace, make a right under the Palisades Parkway at Allison Park, left onto Allison Park Road, into the grounds of Saint Peter's College at Englewood Cliffs. Circle to the north parking lot. Exit parking lot through gate. Follow GPS coordinates. Disk was hiding under low growing vine. This was our second attempt to find this one.
Reference marks searched for, briefly, but not found.