The popular 21-mile ridgeline Wapack Trail runs from Mount Watatic (MA) to North Pack Monadnock in Greenfield. Local access is by the , or the Temple Mountain or Miller State Park parking areas on Route 101.
Many regulars hike the paved auto road (1.5 miles) up Pack Monadnock year-round for a good workout on sure terrain, while others choose companion trails to the summit (Wapack Trail on the rockier west side through coniferous forest, or the less steep Marion Davis Trail to the east of the auto road through mixed forest).
The state collects a Park fee during the summer and on fall weekends from the parking area kiosk. Many people also hike from the northernmost point, where Sand Hill Road extends into Greenfield (trailhead 4.3 miles from Route 202). Wapack Trail guides and maps are available online, and Miller State Park maps are at the kiosk.
The Wapack Trail passes by N.H. Audubon's fall hawkwatch site at Miller State Park atop Pack Monadnock. Many trail hikers are among the thousands of visitors to the site, September 1 well into November. Most years raptor migrants top 10,000, and are celebrated accordingly.