The Warren Historical Society, 225 Main St., welcomes special guest speaker Matt Carter at its meeting Aug. 2 at 7 p.m. The event is free and open to the public.

Carter will speak on the construction of dry stone walls. The owner of Green Island Stonework in Topsham, Carter built his first dry stone wall in 1992 on a horse farm in upstate New York. In the 24 years since then, he has built or repaired more than 1,500 tons, or 3 million pounds, of dry stone walls. He has been working in Maine for 16 years designing and creating stone walls, patios, fireplaces and outdoor spaces, using mostly native Maine stone.

Over the years, Carter has studied dry stone walling with master craftsmen from the U.S., Canada and Great Britain. In 2007 after several years of study and testing at different levels with the Dry Stone Walling Association of Great Britain, he was awarded an Advanced Craftsman Certificate in dry stone walling, and is currently working on completing his master features in the hope of receiving a DSWA Master Craftsman Certificate.

Carter is certified by the DSWA as a dry stone walling instructor, and occasionally organizes and teaches workshops in dry stone walling around Maine and throughout New England. He has taught dry stone walling at workshops to benefit nonprofit organizations such as the Brunswick-Topsham Land Trust, the Rufus Porter Museum’s annual Cultural Heritage Series, The Woolwich Historical Society, and The Stone Trust in Dummerston, Vt.

For more information, contact Nancy Blake at 701-8474 or nblake7@roadrunner.com