In the west of the Community of Communes Sud Côte Chalonnaise, Marcilly-lès-Buxy extends its territory over nearly 1,900 hectares, offering a verdant setting and a beautiful rural landscape. On this vast territory, the commune is divided between a village and 17 hamlets, the most important of which are Le Martrat, Les Baudots and Boujolle. The Baudots pass, at an altitude of 421 m, marks the Mediterranean/Atlantic watershed, but also the border between Charolais and Chalonnais.The village was home to one of the 11 Chappe telegraph stations located in Saône-et-Loire, on the Paris-Toulon line. The village was split in two by the demarcation line during the Second World War. Today, it is crossed by a path of peace, the Road to Assisi.
Worth seeing are a 19th century chateau and a wash house in the hamlet of Matrat.