The Roxbury Land Trust will offer a program on the geological history of its Mine Hill Preserve and the surrounding landscape Sept. 17 at 2 p.m.

The program will be held at town hall on North Street (Route 67).

The 360-acre nature preserve, which is enrolled on the National Register of Historic Places, is the site of a 19th century iron-making complex, granite quarries, bat caves and nearly four miles of hiking trails that offer glimpses of Roxbury’s industrial heritage and breathtaking natural beauty.

John Smoliga, Ph.D., a senior principal scientist in the Material and Analytical Sciences Department at Boehringer Ingelheim Pharmaceuticals, will explain how what we see today in the landscape was formed by complex geological processes over hundreds of millions of years.

The colliding land masses first formed the Appalachian Mountains, as well as the iron ore deposits at Mine Hill Preserve.