In 1802, William came to the place that would be his home for the last nineteen years of his life. The cave (today known as Indian Echo Caverns) where William set up residence is located at the foot of a high bluff, or "palisades," at the head of a horseshoe bend on the Swatara Creek, approximately upstream from where it meets the Susquehanna River at Middletown. It is on the western boundary of Derry Township, less than southwest of Hummelstown and approximately east of the site of the present-day State Capitol in Harrisburg. It is approximately from the modern town of Hershey.
