Clock Tower opens 1/2 hour before lifts start spinning and closes at 4:30, 7 days a week. Sundance Lodge opens 1/2 before lifts to 1:00pm. Carinthia Lodge opens 1/2 hour before lifts until 2:00. You can view a map of the base area here: https://www.mountsnow.com/the-mountain/about-the-mountain/trail-maps.aspx?tc_1=2