Access to hike up the mountaintop of Tully Mountain is typically by one of three routes: (a) Cemetery Route from a pathway starting near the over-wintering vault at the Tully Cemetery, just south of Tully mountain, or (b) Tully Brook Route from a small unmarked dirt parking area off Tully Road, adjacent to the bridge over the Tully River, just west of the mountain; this pathway follows a completely level and wide cart-path and logging operation around the base of the mountain for about 3/8ths of a mile, and then ascends along a yellow blazed trail, or (c) Mountain Road Route from a defined parking area at the terminus of Mountain Road near the eastern base of the mountain on the side of the open observation face, allowing a slow pathway ascent and views of your parked vehicle from the observation point; one can walk the wide path in a slow winding ascent (this is the easiest, gentlest route up the mountain), or can cut directly across the field from the parking lot to a defined path that quickly connects with the cemetery ascent route (the steepest, fastest route up the mountain). From this parking lot, voices are heard as they carry down the mountain from the observation monadnock. The slow ascent trail is 0.9 miles long and winds along a classic New England stone wall which runs along a pasture and a bog before turning direction through the forested approach to the summit. The parking lot is at 709 feet altitude, and the total altitude gain of the hike is 422 feet to the east observation area.