The director of the Maine Granite Industry Museum on Mount Desert, Steven Haynes, will speak about the granite industry in the quarries on this side of Penobscot Bay at the Camden Public Library Thursday, Oct. 24, at 7 p.m.

The talk is part of the library’s Discover History Month. Haynes will speak on quarrying and about the granite industry in the quarries of Knox County, including notable quarries in St. George, South Thomaston, Tenants Harbor, Vinalhaven, Hurricane Island, and Muscle Ridge Plantation. All are welcome.

Granite quarrying began in Maine as early as 1830 and is still a large industry today, with quarries operating in several areas around the state. The Maine Granite Industry Historical Society works to collect and preserve material pertaining to this once important industry of Maine. The museum houses hundreds of the tools used by the quarrymen, blacksmiths, stone cutters, and stone carvers. On display are more than 350 historic photos, company ledgers, books, Union badges and constitutions.

“We have the largest collection of books relating to the granite industry and family genealogy writings from the families of the men who worked the quarries,” said Haynes.

The mission of the Maine Granite Industry Historical Society is to collect and preserve all artifacts, books, photos, and other materials pertaining to the granite industry in Maine as well as educate students, scholars, residents, and visitors about the industry, culture of the times involved, and provide historical information and genealogy through rare books, photos, and other materials in tours and actual presentations of granite and stonework.