Mount Monadnock, Jaffrey NH

• 5-star hike
• 4 to 8 mile options
• Moderate | Gain 1,610 to 1,940 feet
• Jaffrey - Dublin, NH | Monadnock Region
. 52-With-A-View

“A person sits on a large rock overlooking a vast landscape of rolling green hills under a partly cloudy sky, capturing a sense of tranquility and scale from an elevated position.

Unparalleled New Hampshire views from Monadnock's summit.

Standing proud above the rolling Southern New Hampshire terrain by two and a half thousand feet the domed and rocky-topped Mount Monadnock is an impressive sight. Somehow famed as the second most visited mountain in the world after Mount Fuji, yet we suspect Mount Washington gets many more visitors in New Hampshire alone.

The mountain was unnaturally denuded of much of its topsoil and greenery by fires two hundred years ago. While no doubt an ecological disaster, this does now at least afford us expansive views all around Southern New Hampshire, the Green Mountains of Vermont and the tall buildings of Boston on a clear day. Also check out the old graffiti atop the peak - it seems that old school vandals used to come prepared with hammer and chisel, over a century and a half before Sharpies were invented.

The trails beginning from Mount Monadnock State Park are undoubtedly the most popular, but there are other less crowded trails to the summit also which are a great alternative and may be even better routes for some. In the map below we highlight many different ways up the mountain and review them below for your consideration.
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5★ White Dot & White Cross 3.4 mi part-loop, moderate, gain 1,740 ft
AllTrails · GPX File · Directions

5★ White Arrow & Monte Rosa 4.4 mi part-loop, moderate, gain 1,610 ft
AllTrails · GPX File · Directions

5★ Marlborough Trail 4.0 mi out & back, moderate, gain 1,800 ft
AllTrails · GPX File · Directions

5★ Dublin Trail 4.4 mi out & back, moderate, gain 1,680 ft
AllTrails · GPX File · Directions

5★ Pumpelly Trail 7.9 mi out & back, moderate, gain 1,940 ft
AllTrails · GPX File · Directions

All routes up Mount Monadnock require an element of rock scrambling, which means clambering over rocks and up rocky steps that may be 1-2 feet in height. On wetter days the trails are also likely to cause slippery granite surfaces, and in winter conditions micro-spikes are necessary to overcome ice on the trail. The New Hampshire State Park information center at the trailhead for White Dot offers micro-spike rentals, but it's cheaper just to buy your own in advance.

A person stands on a snowy hillside, wearing a bright orange jacket and dark pants, facing away from the camera towards a panoramic winter landscape with snow-covered trees, distant hills, and a clear blue sky.

A crisp February on the White Cross trail.

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White Dot/White Cross Loop
Very busy. Easiest terrain.
Very popular route. The shortest round trip to the summit would be straight up and down the White Dot trail for 3.4 miles, but you’d be missing some great views and trail variety if you didn’t utilize a return trip back down the White Cross for only an extra 0.3 miles and no additional elevation gain.

Beginning at the New Hampshire State Park Headquarters parking (fee payable, lots of parking) the White Dot trail warms you up with a gentle incline and flat trails before getting a little steeper after half a mile. This is as steep as the trail gets, though close to the summit you’ll find the craggy granite steps a little larger which may tax those unaccustomed to routine hikes. Way-finding is fair to easy as both the White Dot and White Cross trails are well defined and well signposted.

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White Arrow/Monte Rosa
Moderate scrambles.
Starting a hundred feet further up the mountain beginning at New Hampshire State Park’s Old Toll Road trailhead (fee payable, around 10 parking spots) this route is a good alternative to the crowds on the White Dot trail and just slightly steeper and only half a mile longer in length.

The first mile-and-a-half on the Old Halfway House Trail covers flat and moderately sloped terrain on your way to the White Arrow Trail, where you’ll be met with a steeper route, stepping over rocks and roots as you begin your climb to the summit. Much of your route is under cover of maple forest, then evergreen fir trees, before a quarter-mile scramble up exposed granite rocks where the winds can start to pick up. There are some moderate scrambles here, but if you’ve made it this far then you’re likely to have the fitness to handle them.

Since we almost always prefer a loop trail to an out-and-back affair, we found a return route on the Smith Summit Trail (look for the white dot and ‘S’ markings) down to the peak of Monte Rosa, identifiable by the weathervane affixed to its summit. The route then returns back to the trailhead on Old Halfway House.

A scenic landscape from a high vantage point, featuring large rocks and boulders in the foreground with patches of grass and small yellow wildflowers. A clear path or stream winds through the rocks, with a vast view of the horizon, multiple layers of mountains, and a partly cloudy sky above.

Biodiversity still persists atop the denuded mountain summit.

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Marlborough Trail
Hardest route. Early views. Sketchy access road.
A challenging yet short trail through mostly pine forest starts off flat and unassuming, but soon begins to get rocky. Rocks lead to more rocks that become several moderate scrambles. From half way an occasional granite cap, then more granite tops give you great Southerly and then Westerly views. After one more thigh-burning section the trail joins up with the Dublin Trail for the final ascent to the summit.

This is one of the quieter Mount Monadnock trails. The trailhead is located 0.7 miles along a dirt road that begins out fair but becomes more sketchy for the last quarter mile. It turned out that the ground clearance of our sedan car was good enough, but we'd be reluctant to tackle this trail in anything but the best weather. Parking donation payable to the Forest Society. Please give them the money, so they can improve the access road!

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Dublin Trail
Moderate scrambles. Early views.
A quieter route up the Northwest flank offers a gentle incline under forest canopy. Initially easy going, the rocks and roots are more plentiful after 0.6 miles, and once you're half way there the rocky obstacles increase. You can tell you're getting closer to the summit as you pass over wave after wave of granite tops and the trees around you begin to diminish in height. Pumpelly Trail may offer the most views, but Dublin Trail comes in second with excellent Northerly vistas towards Dublin Pond and a distant Crotched Mountain.

The trailhead offers plenty of parking spots, provided you haven't picked a busy day. It's located on Old Troy Road which is usually an easily passable dirt road, except it does not get plowed in winter and washouts can make the road difficult in spring. Parking donation payable to the Forest Society. Please give them the money, so they can improve the access road!

An individual climbs a steep rocky incline. The climber, wearing a backpack, is surrounded by green trees with distant mountains and a blue sky with scattered clouds in the background

Scaling a rocky section on the Marlborough Trail.

A forest scene with sunlight filtering through the trees, creating visible rays of light. The ground is uneven and covered with rocks, fallen leaves, and moss.

Early morning sunshine on the Dublin Trail.

Green Square

Pumpelly Trail
Longer. Easier terrain. Excellent, frequent views.
The longest and possibly the quietest of the trails begins on the North side of the mountain at Dublin Pond. Marked out by a local naturalist in the late nineteenth century, the Pumpelly Trail traces a route up Northernmost flanks of the mountain and combines a more gradual incline with possibly the most spectacular and persistent views from the mountain.

For the first mile-and-a-half the trail is easy going on a well-defined, wide and pine needle carpeted trail. Suddenly your pace will slow, as you have to climb 600 feet of the steepest part of the loop. From this position you follow the ridge-line of Monadnock’s Northern saddle to the peak, surrounded by shorter and thinner trees, and more and more exposed granite caps. Way-finding becomes more difficult on the exposed granite, but stone cairns - looking like turds of a giant rock monster - pepper the landscape, and are useful and possibly necessary markers as you make your way to the 3,165 foot domed summit.

Roadside parking is available at the Dublin Pond trailhead and further West along the road, but do be mindful of the many no parking signs and arrows. No parking fees.

An aerial view of a mountainous landscape covered with dense green forests. A prominent ridge line leads towards a higher peak in the distance, partially obscured by clouds or mist, under a clear sky with few clouds.

Pumpelly Trail on the Northern flanks of the mountain.

Mount Monadnock is featured as part of the New Hampshire 52 With A View hiking list, which showcases peaks with some the best scenic views in the state. The link at the foot of this article takes you to Trailspotting's map of the peaks on the full list and shows all of the trails on which to reach them. Follow us as we explore all the peaks on this list and publish trail reviews featuring descriptions, photography and downloadable maps.

Tangents:
• Trailspotting YouTube: Mount Monadnock
• Official Links: NH State Parks, Forest Society
• Public Maps at AllTrails: White Dot, White Arrow, Marlborough, Dublin, Pumpelly
• Facebook Group: Follow or leave a comment

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