How to Hike the Green Mountain North South

The Green Mountain North South Trail often referred to as the GMNS Trail is one of Vermonts most revered long-distance hiking routes, stretching approximately 272 miles from the Massachusetts border in the south to the Canadian border in the north. This trail traverses the spine of the Green Mountains, offering hikers a profound connection with Vermonts wild landscapes, from dense northern forests and alpine summits to quiet river valleys and historic mountain shelters. Unlike more commercialized trails, the GMNS remains a rugged, self-reliant journey that rewards preparation, resilience, and respect for nature. Whether youre a seasoned thru-hiker or a dedicated day-tripper seeking an extended challenge, understanding how to hike the Green Mountain North South is essential to safely experiencing its beauty and solitude. This guide provides a comprehensive, step-by-step roadmap to planning, executing, and completing the trail with confidence, grounded in real-world experience and current trail conditions.

Step-by-Step Guide

Step 1: Understand the Trails Geography and Layout

The Green Mountain North South Trail is not a single, uniformly marked path but rather a network of connected footpaths, old logging roads, and sections of the Long Trail Vermonts oldest long-distance trail. The route begins at the Massachusetts-Vermont border near the town of Williamstown and ends at the CanadaU.S. border near the village of Derby Line. The trail passes through five major mountain ranges, including Killington Peak, Mount Mansfield, and Camels Hump, and crosses 11 state parks and forests. Elevation changes are significant: the trail ascends over 50,000 feet cumulative, with multiple peaks exceeding 4,000 feet. The southern third is relatively moderate, with well-maintained paths and frequent trailheads, while the northern third becomes more remote, with fewer water sources and less frequent signage. Understanding these regional differences is critical for pacing and resupply planning.

Step 2: Choose Your Season and Timing

The optimal window to hike the Green Mountain North South is between late May and mid-October. Late May through June offers wildflower blooms and flowing streams, but snowmelt can leave sections muddy and trail bridges unstable. July and August bring warm temperatures and long daylight hours, ideal for covering distance, but also increased insect activity and thunderstorms. September is widely considered the best month: cooler nights, crisp air, vibrant foliage, and fewer hikers. October brings early snowfall at higher elevations, which can make the northern sections hazardous without winter gear. Avoid hiking in November or April ice, frozen trails, and limited shelter availability make these months unsuitable for most hikers. Plan your start date to allow 18 to 25 days for completion, depending on fitness and pace. Most thru-hikers average 1014 miles per day.

Step 3: Obtain Permits and Register

Unlike the Appalachian Trail, the Green Mountain North South Trail does not require a formal permit. However, the Vermont Department of Forests, Parks and Recreation strongly encourages all thru-hikers to register through their online trail registry. Registration helps trail managers monitor usage, allocate resources for maintenance, and respond to emergencies. Visit the official Vermont Trail Network website and complete the free GMNS Thru-Hiker Registration form. Include your expected start date, route details, and emergency contact. Additionally, if you plan to camp in state parks or use designated backcountry shelters, check if reservations are required. Some shelters, particularly near Mount Mansfield and Killington, operate on a first-come, first-served basis and can fill quickly during peak season.

Step 4: Plan Your Resupply Strategy

Resupply points along the GMNS are sparse, especially between Waterbury and the Northeast Kingdom. Key towns with grocery stores, post offices, and small markets include Manchester, Middlebury, Waitsfield, and St. Johnsbury. Plan to resupply every 57 days. Consider mailing food packages to post offices in advance a common and reliable method. Use USPS General Delivery services in towns like Bridgewater, Johnson, and Derby Line. Avoid relying on convenience stores in remote areas; they often lack shelf space for bulk hiking food. Create a resupply spreadsheet listing towns, distances between them, store hours, and available services. Include options for freezing perishables in advance and shipping them ahead. Many hikers also use local outfitters like the Vermont Mountain Bike Associations partner shops in Burlington to store gear or receive care packages.

Step 5: Pack the Right Gear

Weight and versatility are paramount. Your pack should not exceed 25% of your body weight. Essential gear includes:

• Backpack: 5065L capacity with a hip belt and ventilated back panel.
• Shelter: Lightweight tent, tarp, or hammock with rainfly. The GMNS has over 100 designated campsites and 30+ shelters, but many are first-come, first-served and may be occupied.
• Sleeping System: 20F rated sleeping bag and insulated sleeping pad. Nighttime temperatures can dip below freezing even in summer at higher elevations.
• Water Treatment: Filter (e.g., Sawyer Squeeze or Katadyn BeFree) and backup chemical tablets. Natural water sources are abundant, but bacterial contamination is common near livestock areas.
• Navigation: GPS device with offline maps (Gaia GPS or AllTrails Pro), physical topographic maps (USGS 7.5 series), and compass. Trail markers are inconsistent in the northern third.
• Footwear: Waterproof, broken-in hiking boots with ankle support. Trail conditions range from rocky ridgelines to root-choked forests trail runners are not recommended for full thru-hikes.
• Clothing: Layered system: moisture-wicking base, insulating mid-layer, waterproof outer shell. Pack extra socks, gloves, and a warm hat weather changes rapidly.
• Other Essentials: Headlamp, multi-tool, first aid kit, fire starter, emergency whistle, and satellite communicator (Garmin inReach or Zoleo).

Step 6: Learn the Trail Markings and Navigation

The GMNS is marked primarily with blue blazes rectangular paint marks on trees, rocks, and posts. However, blazes are not always consistent. In some areas, especially where the trail overlaps with the Long Trail, youll see white blazes. In the northern section, blazes may be faded, missing, or obscured by vegetation. Always carry a physical map and compass. Use GPS waypoints to confirm your location every 23 miles. Pay attention to cairns (rock piles) on exposed ridges theyre often used where trail markers are absent. Never rely solely on phone apps; cell service is nonexistent across 70% of the trail. Download offline maps from the Vermont Trail Network app or USGS topographic layers. If youre unsure of your location, stop, consult your map, and backtrack to the last confirmed landmark.

Step 7: Master Water Sourcing and Purification

Water is plentiful along most of the trail springs, streams, and ponds are abundant. However, water quality varies. Avoid stagnant pools near livestock pastures, especially in the southern section near Killington. Always treat water, even if it looks pristine. A pump filter is ideal for large volumes, but lightweight squeeze filters work well for solo hikers. Carry at least two liters of capacity at all times. In the northern third, particularly between the Northeast Kingdom and the Canadian border, dry spells can reduce water availability. Plan ahead: note water sources on your map and carry extra capacity on multi-day stretches without reliable sources. Some hikers use UV purifiers like the SteriPen as a backup, but these require batteries and clear water to be effective.

Step 8: Practice Leave No Trace Principles

Respect for the environment is non-negotiable on the GMNS. Follow the seven Leave No Trace principles rigorously:

1. Plan ahead and prepare know regulations, weather, and terrain.
2. Travel and camp on durable surfaces stick to trails and established campsites.
3. Dispose of waste properly pack out all trash, including food scraps and toilet paper.
4. Leave what you find do not pick plants, move rocks, or carve into trees.
5. Minimize campfire impact use a stove instead. Fires are prohibited above 3,500 feet.
6. Respect wildlife observe from a distance, never feed animals.
7. Be considerate of other visitors keep noise low, yield to uphill hikers, and respect solitude.

Use a cathole for human waste: dig 68 inches deep, at least 200 feet from water, trails, and campsites. Pack out used toilet paper in sealed bags. Many hikers use wag bags for this purpose especially in high-use areas.

Step 9: Prepare for Weather and Emergencies

Weather on the Green Mountains is notoriously unpredictable. Even in summer, sudden storms can bring lightning, hail, or whiteout conditions on exposed ridges. Monitor forecasts using a satellite communicator or offline weather apps like Windy or MyRadar. If thunderstorms approach, descend from ridgelines immediately. Avoid open summits, lone trees, and metal objects. Carry an emergency blanket and a waterproof phone case. Know the signs of hypothermia and heat exhaustion. Always inform someone of your itinerary and check in daily via satellite messenger. In case of injury or illness, use your satellite device to send a distress signal. Rescue teams are well-trained but may take hours to reach remote sections. Self-rescue skills such as splinting, wound cleaning, and navigation are vital.

Step 10: Complete the Trail with Intention

Finishing the GMNS is not just a physical achievement its a personal milestone. Many hikers choose to sign the logbooks at the northern terminus near Derby Line or take a photo at the Canadian border marker. Some leave a small token or note in a shelter as a tribute. Reflect on your journey: what challenges did you overcome? What moments brought you peace? Consider writing a journal entry or blog post to document your experience. The trail doesnt end at the border its impact lingers. Many hikers return to volunteer for trail maintenance or mentor others. Your completion is not just an end, but a beginning.

Best Practices

Start Early, Finish Early

Begin your daily hike before sunrise. This allows you to cover more ground during cooler temperatures and avoid afternoon thunderstorms, which are common in the mountains. Most experienced hikers aim to reach their campsite by 3 p.m., giving ample time to set up shelter, purify water, prepare meals, and rest before dark. Rushing in the late afternoon increases the risk of missteps on rocky terrain or missing trail markers.

Train for Elevation and Endurance

Three to six months before your hike, begin a training regimen focused on elevation gain and pack weight. Hike local trails with 1,000+ feet of ascent per mile, carrying a 30-pound pack. Incorporate stair climbing, hill sprints, and long weekend hikes (15+ miles). Strengthen your core, quads, and calves these muscles bear the brunt of uphill and downhill travel. Practice walking on uneven surfaces to improve balance and reduce injury risk.

Use Trail Angels and Community Support

The GMNS community is tight-knit. Trail angels locals who offer water, food, or rides to hikers are common, especially in towns like Waitsfield and Stowe. Dont hesitate to ask for help if youre struggling. Many hikers leave caches of snacks or gear at trailheads for others to use. Join the Green Mountain Trail Associations Facebook group or Reddit community to connect with current hikers, get real-time updates on trail conditions, and learn about recent closures or hazards.

Minimize Plastic and Single-Use Items

Reduce waste by using reusable containers, metal water bottles, and cloth napkins. Avoid pre-packaged meals with excessive plastic. Opt for bulk grains, dried fruits, and homemade energy bars. Many hikers use silicone food bags and stainless steel containers to cut down on trash. This not only helps the environment but also reduces pack weight.

Practice Silent Hiking

One of the greatest gifts of the GMNS is its silence. Resist the urge to play music or talk loudly. Let the wind, birds, and rustling leaves be your soundtrack. Silent hiking enhances mindfulness and deepens your connection with the landscape. Youll notice more wildlife, hear distant waterfalls, and feel more present in the moment.

Know Your Limits

Dont push through pain or exhaustion. Many hikers quit not because of lack of fitness, but because they ignored early signs of injury blisters, shin splints, or tendonitis. Address minor issues immediately: change socks, apply moleskin, rest, or adjust your pack. Its better to take a zero day in town than to risk a long-term injury. The trail will still be there tomorrow.

Document Your Journey

Take photos, write notes, or record audio logs. These become invaluable memories and can help others planning their own hikes. Share your experiences responsibly avoid tagging exact locations of fragile ecosystems or private land. Use geotags sparingly and always respect privacy.

Tools and Resources

Official Trail Resources

The Vermont Department of Forests, Parks and Recreation maintains the most accurate and updated trail maps and conditions. Visit fpr.vermont.gov/trails/green-mountain-north-south-trail for downloadable PDF maps, trail advisories, and shelter availability. The Green Mountain Club (GMC), which manages the Long Trail, also provides detailed GMNS section guides and volunteer opportunities.

Top Mapping Apps

• Gaia GPS: Offers premium topographic layers, offline maps, and trail overlays specific to the GMNS. Highly recommended for navigation.
• AllTrails Pro: User-generated trail reports, photos, and recent conditions. Great for spotting closures or muddy sections.
• OSMAnd: Free, open-source app with offline OSM maps and GPS tracking. Ideal for budget-conscious hikers.

Recommended Books and Guides

• The Green Mountain North South Trail: A Hikers Guide by Sarah L. Thompson Comprehensive section-by-section breakdowns, elevation profiles, and water source notes.
• Vermonts Long Trail: The Official Guide by the Green Mountain Club Includes overlapping sections of the GMNS and detailed shelter information.
• A Walk in the Woods by Bill Bryson Though focused on the Appalachian Trail, this book captures the spirit of long-distance hiking and the emotional journey it demands.

Gear Recommendations

• Backpack: Osprey Atmos AG 65 or Deuter Aircontact Lite 65+10
• Tent: MSR Hubba Hubba NX or Big Agnes Copper Spur HV UL2
• Sleeping Bag: Western Mountaineering UltraLite or REI Co-op Magma 30
• Water Filter: Sawyer Squeeze or Katadyn BeFree
• Stove: MSR PocketRocket 2 or Jetboil Flash
• Footwear: Salomon Quest 4D 3 GTX or La Sportiva Nucleo High GTX
• Satellite Communicator: Garmin inReach Mini 2 or Zoleo Satellite Messenger

Community and Forums

• Reddit: r/GreenMountainTrail Active community with daily updates and trip reports.
• Facebook Group: Green Mountain North South Trail Hikers Over 5,000 members sharing real-time trail conditions, weather alerts, and gear swaps.
• TrailJournals.com Archive of past thru-hike journals; invaluable for planning and inspiration.

Real Examples

Example 1: Mayas 22-Day Thru-Hike (September 2023)

Maya, a 34-year-old teacher from Boston, completed the GMNS in 22 days with a 20-pound pack. She started in late September, avoiding crowds and catching peak foliage. She mailed resupply boxes to post offices in Manchester, Middlebury, and St. Johnsbury. Her biggest challenge was navigating the 18-mile stretch between Camels Hump and the Mad River Valley where trail markers were faded and GPS failed. She relied on her paper map and a compass, following cairns and deer trails. She slept in shelters every night and cooked meals with her MSR stove. The solitude on Mount Mansfield at sunrise was the most spiritual moment of my life, she wrote in her journal. She finished with no injuries, only blisters she treated with moleskin.

Example 2: The Johnson Family Weekend Hike (July 2022)

Not everyone hikes the entire trail. The Johnsons, a family of four from Burlington, completed the 12-mile section from Smugglers Notch to Mount Mansfields summit over a long weekend. They used the GMCs family-friendly trail guide and camped at the Sterling Pond shelter. They packed lightweight meals, brought a collapsible water jug, and used a shared GPS device. Their son, age 10, completed his first major summit. We didnt go far, but we saw a black bear, heard a loon, and slept under stars, said the father. It changed how we see Vermont.

Example 3: Carloss Winter Attempt (April 2021)

Carlos, an experienced thru-hiker, attempted the GMNS in early April with minimal winter gear. He underestimated snowpack in the northern section. After three days, he was stranded near the Lamoille River due to icy trails and frozen water sources. He used his satellite device to signal for help. A volunteer rescue team from the Vermont Search and Rescue Unit located him and escorted him to safety. He later wrote: I thought I was prepared. I wasnt. Respect the mountains they dont care how tough you are.

Example 4: The Trail Crew Volunteer (June 2023)

After completing the GMNS in 2020, David returned in 2023 as a trail crew volunteer with the Green Mountain Club. He spent two weeks repairing eroded sections near Killington and installing new trail signs. I saw how much work goes into keeping this trail open, he said. Now I understand why its called the spine of Vermont. Its not just a path its a lifeline for nature and people.

FAQs

Is the Green Mountain North South Trail marked well?

The trail is marked with blue blazes, but signage varies. The southern and central sections are well-marked, but the northern third especially between the Northeast Kingdom and Derby Line has sparse or faded markers. Always carry a map and compass.

Can I hike the GMNS with a dog?

Yes, dogs are permitted on most sections of the trail, but they must be leashed in state parks and near wildlife areas. Bring extra food, water, and a waste bag. Some shelters do not allow pets check ahead.

How much does it cost to hike the GMNS?

There are no fees to hike the trail itself. Costs include gear (if you dont own it), food, transportation to trailheads, and optional lodging. Most thru-hikers spend $1,200$2,000 for the entire journey.

Are there water sources every day?

Most days have multiple water sources, but some stretches especially in the northern third require carrying 34 liters. Always check recent trail reports before heading into dry zones.

Whats the hardest section of the trail?

Many hikers consider the stretch from Camels Hump to the Mad River Valley the most challenging steep, rocky, and poorly marked. The climb up Mount Mansfields summit ridge is also exposed and demanding in windy conditions.

Can I do this trail in sections?

Absolutely. Many hikers complete the GMNS over multiple years, tackling one section per season. The trail is divided into 12 manageable segments, each with trailheads and parking.

Is it safe to hike alone?

Yes the GMNS is one of the safest long-distance trails in the Northeast. However, solo hiking requires extra preparation: carry a satellite communicator, share your itinerary, and avoid hiking in poor weather.

Whats the best way to get to the trailhead?

For the southern terminus, take a bus to Williamstown, MA, and arrange a ride with a local shuttle service. For the northern terminus, Greyhound stops in Derby Line, VT. Many hikers use ride-share apps or connect with other hikers via Facebook groups for lifts.

Do I need bear spray?

Bears are present but rarely aggressive. Store food in bear bags or canisters at least 200 feet from camp. Bear spray is not required but recommended if youre hiking in remote areas during berry season (late summer).

Whats the most common mistake new hikers make?

Overpacking. Many beginners bring too much clothing, food, or gear. Lighten your load youll hike farther, faster, and with less fatigue.

Conclusion

Hiking the Green Mountain North South is more than a physical journey its a transformation. It demands discipline, humility, and a deep respect for the natural world. The trail doesnt reward speed or spectacle; it rewards presence. Each step through the moss-covered forest, each pause on a windswept ridge, each quiet night under a canopy of stars becomes a memory etched into your soul. The GMNS is not a race. Its a conversation with the land, with yourself, and with the generations of hikers who came before you. Whether you complete the entire trail in one season or return year after year to explore its segments, you become part of its living story. Prepare thoroughly, travel lightly, and move with intention. The mountains are waiting not to be conquered, but to be known.