The Monadnock-Sunapee Greenway is southern New Hampshire's hidden gem for backpackers seeking a taste of the Appalachian Trail experience without the crowds. This 46-50 mile white-blazed trail connects two of the region's most prominent peaks—Mount Monadnock (3,165 ft) and Mount Sunapee (2,743 ft)—traversing a surprisingly remote landscape of dense forests, quiet ponds, rolling hills, and open meadows. With approximately 10,000 feet of cumulative elevation gain spread over moderately challenging terrain, the MSG is ideal for novice backpackers testing their skills, families enjoying a long weekend adventure, or experienced hikers looking for a well-maintained trail close to major New England cities.
The trail passes through an impressive patchwork of conservation lands including three New Hampshire state parks (Monadnock, Sunapee, and Pillsbury), land trust properties, and over 80 private parcels where landowners have generously granted trail easements. This mix of public and private land requires backpackers to respect designated camping areas and follow Leave No Trace principles rigorously—the trail's continued existence depends on maintaining positive relationships with these landowners.
Most thru-hikers complete the MSG in 3-4 days, though the well-spaced shelters allow for flexible itineraries. The trail features classic New England terrain: rocky and rooted paths, occasional road walks, wet sections during spring, and steep ledges offering rewarding views. Unlike the heavily trafficked White Mountains to the north, the Greenway offers solitude and a sense of remoteness that's increasingly rare in the Northeast.
No permits are required to backpack the Monadnock-Sunapee Greenway. All five shelters and the Fox Brook tent platform are free, first-come, first-served, with no reservation system. This means shelter availability is never guaranteed, so carrying a tent is strongly recommended, especially on popular weekends during summer and fall.
Camping is strictly prohibited except at designated sites. Violating this rule jeopardizes the trail's access across private land. The six official camping areas are clearly marked with signs and detailed in the official MSGTC trail map.
Open fires (wood or charcoal) are banned at all Greenway campsites. Backpackers must carry a gas stove for cooking. This regulation exists due to fire danger and the sensitive nature of camping on private land.
All trash must be packed out. The trail operates on a strict pack-in/pack-out policy with no facilities for waste disposal at any camping area.
Pets are prohibited within Monadnock State Park boundaries at the southern terminus. Dogs may be allowed on other sections of the trail, but check current regulations before hiking with pets.
Hunting is permitted on lands adjacent to the trail. During hunting season (typically fall), hikers should wear blaze orange for visibility.
The official parking fee at Monadnock State Park is $15 per vehicle (plus $1 reservation fee). Parking reservations are strongly recommended April through November, as the park regularly sells out on weekends. Alternative trailheads like Dublin or Pumpelly may offer free parking options. At the northern terminus, parking is available at Mount Sunapee Resort or along designated areas on Mountain Road near various trailheads.
Most backpackers tackle the MSG from late May through October, with late August through mid-October being the prime window for optimal conditions.
Summer (June-August): Reliable weather and full water availability make summer the safest choice for first-timers. Expect warm temperatures in the valleys, with cooler conditions on exposed summits. Biting insects (mosquitoes, blackflies, deer flies) can be intense in June and early July, particularly near water sources and in low-lying areas. Afternoon thunderstorms are common; avoid exposed ridges and summits during electrical activity. Water sources that are reliable in summer may include the shelters' nearby brooks, though even these should not be assumed safe.
Fall (September-October): The most popular season for good reason. Cooler temperatures make for comfortable hiking, insects disappear after the first frost, and the foliage display peaks in late September through early October. The entire trail ablaze with orange and red leaves is spectacular. Water availability begins declining in September—any source marked unreliable will likely be dry, and even some typically reliable brooks may be reduced to trickles during dry autumns.
Spring (April-May): Shoulder season hiking offers solitude but comes with challenges. Snow lingers on Mount Monadnock and around Lake Solitude well into April, requiring traction devices. An early April thru-hiker reported temperatures ranging from 30-45°F with rain, sleet, and snow. Trail sections can be extremely wet and muddy. Water is abundant, though snowmelt can make some crossings more challenging. The footbridge at Eliza Adams Gorge can be dangerous during high water. Benefits include having the trail largely to yourself and potential for spring wildflowers in May.
Winter (November-March): The MSG can be hiked year-round with proper equipment and winter backpacking skills. Snow is common and may require snowshoes or cross-country skis. Ice forms on exposed ledges and summits, making conditions dangerous without crampons and ice axes. The white trail blazes become difficult to follow in snow-covered conditions. Mount Monadnock's exposed 3,165-foot summit experiences severe weather year-round, with high winds common and winter storms potentially life-threatening.
Water scarcity is the MSG's greatest logistical challenge. The Greenway is known for unreliable water sources, particularly during summer and fall dry spells.
Most shelters have associated water sources, typically small brooks located 0.2-0.3 miles south of the shelter along the trail—not immediately adjacent to the camping areas. In early August, any source marked "unreliable" on maps was completely dry. The least dependable water is at Steve Galpin Shelter near Mount Sunapee. Fox Brook tent platform historically has water nearby, but flow rates vary dramatically by season.
The MSGTC recommends considering water caches if hiking during dry periods. Some backpackers stash water along the route before their thru-hike. At minimum, carry extra capacity (4-6 liters) between sources and plan your daily mileage around confirmed water availability.
All water must be treated. Sources flow through inhabited areas and swamps, presenting contamination risks from parasites, bacteria, and other pathogens. Boiling, chemical treatment, or filtration is mandatory.
The trail crosses several notable water bodies including Seavers Reservoir, Howe Reservoir, Chesham Pond, Silver Lake, Childs Bog, Center Pond, Halfmoon Pond, and the mountaintop Lake Solitude. While these larger bodies provide reliable water, they still require treatment.
Resupply options are limited but adequate for a 3-4 day trip. The Washington General Store, located approximately one-third mile from General Washington Shelter (roughly the trail's midpoint), is a beloved stop offering hot breakfast and lunch cooked to order, snacks, beverages, ice cream, and basic grocery items sufficient for a few days' resupply. The store also serves as a social hub where northbound and southbound hikers often cross paths. It's family-owned, supports the trail community, and has become something of an institution for MSG hikers.
Most backpackers carry all their food from the start given the trail's short duration, using the Washington General Store more for a hot meal and morale boost than essential resupply.
The MSG presents typical New England hiking hazards plus some trail-specific concerns.
Deer ticks carrying Lyme disease are prevalent throughout the region. Perform thorough tick checks daily, wear long pants, use permethrin treatment on clothing, and consider DEET on exposed skin. Peak tick season runs April through October.
Weather exposure on Mount Monadnock's summit is serious. The isolated 3,165-foot peak experiences much harsher conditions than the forested trail below. High winds occur year-round; winter storms can be life-threatening. Check forecasts and be prepared to modify plans if severe weather approaches while you're near either terminal peak.
Lightning risk exists on exposed summits and ridgelines during thunderstorms, which are common on summer afternoons. Start early to summit Monadnock or Sunapee before midday when storms typically develop.
Water crossings are generally not difficult—most potentially problematic crossings have bridges. However, the footbridge at Eliza Adams Gorge can be dangerous during high water in spring or after heavy rain. Use caution and consider alternative timing if water levels are elevated.
Slips and falls on wet rocks and roots are the most common cause of injury. New England trails are notoriously rocky and rooted; wet conditions make them treacherous. Trekking poles provide valuable stability.
Wildlife includes black bears, though problems are rare. Proper food storage (hanging or using bear canisters if preferred) is good practice. More common nuisances are skunks, raccoons, and porcupines active after dark around shelters. Poisonous snakes are considered extinct along the route, which is welcome news for ground-sleeping hammock users.
Domestic dogs pose more problems than wildlife according to the trail club. Encounters with unleashed or poorly controlled dogs can be unpleasant, particularly in high-use areas near state parks.
Navigation is generally straightforward—the trail is well-marked with white blazes and maintained by dedicated volunteers. However, white blazes can be difficult to follow in winter snow conditions. Carrying a detailed map is recommended; the official MSGTC waterproof map is the gold standard.
Wet trail sections are common, especially in spring or during rainy periods. The terrain includes areas that hold water, making waterproof boots or gaiters valuable.
Overall, the MSG is not technically difficult, but the combination of water scarcity, exposure on terminal peaks, and classic New England rocky terrain requires proper preparation and respect.
The Monadnock-Sunapee Greenway is an end-to-end trail requiring a shuttle or two-vehicle setup, as no public transportation exists between termini.
Southern Terminus—Mount Monadnock: The trail begins at the summit of Mount Monadnock, accessed via several routes from Monadnock State Park in Jaffrey. The park headquarters on Poole Road offers the most popular access, with parking requiring advance reservations ($15 per vehicle plus $1 fee) April through November. The park regularly sells out on weekends, so book ahead at newhampshirestateparks.reserveamerica.com. Alternative trailheads at Dublin and Pumpelly may offer free parking without enforcement, though official policy prohibits parking elsewhere to walk into the park.
From Boston, drive approximately 90 minutes northwest via Route 2 and Route 202. From the White Mountains, head south via Route 93 and Route 101 west.
Northern Terminus—Mount Sunapee: The trail ends at the summit of Mount Sunapee, with multiple access points. Mount Sunapee Resort's main parking lot provides the most straightforward access with ample space and facilities. Parking is also available at Mount Sunapee State Park campground or along designated roadside areas on Mountain Road near the Andrew Brook trailhead (limited to about 10 cars). Parking restrictions apply in the Andrew Brook area due to safety concerns.
From Boston, drive approximately two hours northwest via I-89. From Hanover/Lebanon area, head south on I-89 to Exit 9.
Shuttle Logistics: No commercial shuttle services operate between the termini. Options include:
Nearest significant airports are Manchester-Boston Regional Airport (MHT, about 60 miles from Monadnock) and Boston Logan International (BOS, about 90 miles). Both require rental cars.
Road conditions to all major trailheads are suitable for standard vehicles. High clearance is not required.
Shelter spacing strategy: The five shelters are relatively evenly distributed for 3-4 day itineraries, but knowing the exact distances helps plan your days. Southbound hikers often aim for: Day 1 to Steve Galpin or Max Israel, Day 2 to General Washington, Day 3 to Crider or Fox Brook, Day 4 to finish. Northbound is the reverse. Flexible daily mileage is key since shelters are first-come, first-served.
Direction debate: Northbound (Monadnock to Sunapee) means starting with the toughest climb and highest exposure, getting the challenge done early. Southbound offers a gentler start with rolling terrain before the dramatic finale on Monadnock. Most hikers report preferring southbound to "summit out" on the more iconic peak, but northbound frontloads the difficulty when you're freshest.
Water cache intelligence: If hiking during dry periods (late summer/early fall), seriously consider caching water before your trip. Drive to road crossings and stash gallon jugs in the woods near the trail. Mark locations precisely on your map. This transforms a potentially miserable water-scarcity march into a comfortable hike. The Washington area and road crossings near Pillsbury State Park offer accessible cache points.
Washington General Store timing: Plan your itinerary to hit the General Washington Shelter around lunchtime on your second or third day, allowing a hot meal at the nearby store. This morale boost and chance to socialize with other hikers is a trail highlight. The store keeps limited hours; confirm current schedule before your trip.
Early starts for summits: Both terminal peaks are exposed with significant lightning risk. Start early enough to summit Monadnock or Sunapee well before afternoon thunderstorm season (typically 2-4 PM in summer). This is especially critical on Monadnock's bare rock summit with no shelter.
Carry a tent even if planning shelters: The first-come, first-served system means you might arrive to find a shelter full, especially on holiday weekends. A lightweight shelter provides insurance and flexibility to camp near water sources rather than hiking dry distances to shelters.
Map essential: Purchase the official MSGTC waterproof map ($8-10) from their website. This detailed map shows all shelters, water sources (with reliability notes), road crossings, and trailhead options. Digital apps exist but having the physical map provides backup and supports trail maintenance.
Pillsbury State Park bonus: The trail passes through this quiet state park, offering an interesting mid-trail change of scenery with ponds and backcountry feel. Some hikers use the park's campground as a bailout option or rest day location, though it's slightly off-trail.
Fall foliage madness: If hiking during peak foliage (late September/early October), expect parking areas to be completely full and trail use at its highest. The views are spectacular but anticipate company at shelters and summits. Book Monadnock parking well in advance.
Lesser-known highlight—Lake Solitude: This small, remote pond near Mount Sunapee offers one of the trail's most peaceful spots. On calm days, the reflection views are stunning. Consider taking a short break here rather than rushing through.
Gear approach: The MSG suits ultralight principles well given the short duration, manageable terrain, and shelter availability. Many hikers travel with minimal gear, focusing on efficient water carry capacity over luxury items. A compact stove suffices since fires are prohibited.
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