Come to the Spiro Mounds Archaeological Center on Tuesday, December 21, 2021, for guided walks to learn about the winter solstice and how prehistoric American Indians dealt with the changes in the seasons. Archaeologist and manager Dennis Peterson will lead guided tours starting at 11 a.m., 2 p.m., and 7 p.m. Each walk will take about two hours and require a mile of easy walking. The pace of life today is so rushed and hectic that the natural rhythms of…