Jug Rock

Jug Rock is a natural geological formation located outside of Shoals, Indiana, in the valley of the East Fork of the White River.

It is part of the Mansfield formation, laid down in the Pennsylvanian geological epoch, roughly 325 to 286 million years ago.

In the Second Report of the Geological Survey of Indiana, published in 1871, State Geologist E. T. Cox wrote: One of the most interesting spots to visit, for obtaining a view of this character of scenery, is near the town of Shoals, on the road to the Indian Sulphur Springs.

A high ridge of millstone grit, here, terminates within a few yards of the East Fork of the White River, from the top of which, there is a projecting mass of conglomerate sandstone, called the "Pinnacle," which stands one hundred and seventy feet above the level of the stream.

For this faithful representative of a highly interesting geological scene, I am indebted to B. F. Devol, and D. Allbright, of Shoals.