A much nicer alternative (and the one primarily used in winter) is to use the abandoned Fire Warden's Trail which starts off of the North Twin Trail. The North Twin trail is located at the end of Haystack Road which is also closed in winter (are you starting to notice a pattern here?) so one must park at the end of Little River Road which is located just over a mile east on US 3 from Haystack Road and use the overgrown old Little River logging railroad to get over to Haystack Road.
After a less than decent nights sleep at the Villager Motel in Bartlett (I would not recommend staying here, e-mail me if you would like to know why) I was up and out the door at 7:30 to meet Chris and Matt on Little River Road. We wasted no time getting ready as the temperature was registering in at a big fat bagel on the thermometer.
Eventually the trail enters a giant section of Birch glades which are beautiful, especially surrounded by gleaming white snow. It was here that Matt and I decided to put on our snow shoes as the snow amount was increasing and was not consolidated. Chris was on a time schedule as he had to be back in Rhode Island for his New Year's Eve plans. Even though he still had another hour before his turn around time his feet were cold (time for new boots, Chris!!!) so he decided it would be best to turn around and head down. Matt and I pressed on and packed down the trail and reached the summit at Noon. The summit was in the clear under cloudy skies with very little to no wind present. Quite the change from the day before on Isolation. It was extremely cold though (roughly 1 degree) so we snapped a few pics and headed back down. We stopped for a quick snack and realized we were both quite chilled so we layered up and moved down at a fairly steady pace. The clouds started rolling in around us and snow flurries were starting to fall. Back at the car there was a fresh dusting of snow and the temperature had risen to 15 degrees! Wow what a heat wave!