The Marlboro Nordic Ski Club maintains and grooms approximately 15 kilometers of ski trails on the Potash Hill Campus and throughout the town of Marlboro. Usage of the campus ski trails requires paying a day fee or purchasing a membership with the Marlboro Nordic Ski Club. Only skiers and snowshoers may use the campus trails in the wintertime so we can provide safe and reliable ski conditions, walking on the trails and dogs are not allowed. On campus, we have approximately 5 kilometers of trails that are groomed for both skate and classic skiing while the rest are for classic skiing.