New starting this weekend at this Massachusetts resort, you can go trail riding without the snow. Catamount gets out of the chute on Saturday with three glorious Berkshire weekend days of biking the mountain trails this fall. Go the downhill route, or try some cross-country biking from 10 a.m. until 4 p.m. The Cat rolls it out again on Sept. 29 and Oct. 27. Fret not. Should it rain, Sundays are reserved on the same weekends.