Conservation volunteer Dave McSurdy will present a program on "Native American pottery and basketry" on Saturdayin the Locust Lake Amphitheater, Barnesville, at 6 p.m. This program is open to the public and is free. The program will be held in the Locust Lake shelter near the camp store in case of rain. The program will be canceled in the event of thunder/lightning storms. All children attending must be accompanied by an adult.