Ready to get your pumpkin carving, cider pressing, and farmstead lunch on? Basalt's Rock Bottom Ranch is hosting ACES' (Aspen Center for Environmental Studies)13th annual Harvest Festival October 18. Ticket sales and a silent auction will benefit ACES, environmental science classes at local schools, and hands-on research and field trips for 42 regional schools. Note it's a car-free event- there's a shuttle, or opt to walk or bike the lovely Rio Grande Trail to the ranch. [Curbed Ski]