Founded by Arthur Frothingham in 1886 as picnic grounds, it was transformed into an amusement park by engineer and entrepreneur Frederick Ingersoll in 1904.

[2][3] Soon afterward, Frothingham obtained a Pennsylvania state cemetery charter for the park after learning of plans of extending tracks of the Lehigh Valley Railroad over the grounds.

To avoid losing the park through eminent domain, Frothingham interred two bodies in the proposed route of the track.

The Lehigh Valley Railroad purchased a parcel of the cemetery for $25,000 and agreed to build a Laurel Line station nearby.

After failed attempts to sell the park to Metro-Goldwyn-Mayer and Federal Feature Film Corporation of New York,[7] Williams and Frothingham sold it to a trio of businessmen in 1919: John Nallin, Joe Jennings, and Ben Sterling.

Sterling's Rocky Glen was no exception, its plight exacerbated by the decline in the coal industry at the same time (a prominent revenue stream in the area).

The old miniature railroad was dismantled and sold by Sterling to the Clifford Township Volunteer Fire Company, where it has remained ever since.

The local congregation of Hare Krishna attempted to purchase the Rocky Glen Park grounds so it could erect a walled "City of God" on the site.