Rebecca Knox was helping her parents move in New Jersey and was playing a treasure hunt game that relies on GPS technology when she left the pack behind at Ramapo State Forest on Halloween.
Joseph Monto was surprised when he looked inside the pack and found cash, jewels, notebooks filled with geographic coordinates and medical records for Knox's parents.
An emergency number led Monto to Knox's brother, who contacted his sister.
Knox said the cash was a down payment on her parents' retirement home.
Knox gave Monto a $1,000 reward. She told The Record newspaper that he should contact her any time he wants a character reference.