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Smarts Mountain via Appalachian Trail is a 6.9 mile moderately trafficked loop trail located near Lyme, New Hampshire that features a river and is rated as difficult. The trail offers a number of activity options and is best used from March until October. Dogs are also able to use this trail but must be kept on leash.

Length 6.9 mi Elevation gain 2,332 ft Route type Loop
Dogs on leash Backpacking Camping Hiking Nature trips Bird watching Forest River Views Wild flowers Wildlife Blowdown Muddy
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Reviews (83)
Photos (118)
Recordings (60)
Completed (161)
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Stephen Hession
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Hiking

Good hike but not a lot of great views aside from the fire tower. Definitely recommend going clockwise as it was steep going up. Going down was a lot more gradual.

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Ethan Arrowood
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HikingBugs
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Katy Driscoll
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Hiking

Did loop; up AT, down Ranger. Great view of Smarts and fire tower from ledges before final push. Though it seemed so far away! Steep ascent where trails meet before peak. Still quite buggy at top; enclosed by trees, no wind. Ate lunch pretty fast. Beginning of Ranger Trail very rocky, dry river bed. No blazes for beginning section and a lot of blowdowns but easy to follow. 2 areas where we stopped and really looked before continuing down. In dark or stormy conditions, it could be easier to miss the way. Trail became woody and flat for the last section. Buggy, black flies and mosquitoes, most of the way down. I had bug net, companions reapplied bug spray several times. Afternoon T-storms never occurred, but we chose this route due to the weather predictions.

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Katy Driscoll
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HikingBlowdownBugsRockyScramble
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Steven Brook
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HikingBlowdownBugsMuddyRocky

Great trail if you like wilderness And I do. Nice ledges on the way up on the Big A. total 360* in fire tower. went down Ranger trail. I would not take this trail down if there was rain 24 hrs before. All smooth rock top mile down and steep. Dry like today no problem. Great day on trail with my daughter Abi.

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Sue Gaspard
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HikingBlowdownMuddyRocky

Great hike. Hard start and hard finish but I’d say moderate overall. Muddy and wet which made slick rocks. Busier than expected. Cool so bugs weren’t bad. Worth the hike if you climb the tower at the summit.

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Bob Rea
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HikingBugs

My Fitbit put the mileage of this trail (Lambert/Appalachian to Ranger Trail loop) at 9.5 miles, not the advertised 6.9. This was also literally the buggiest place I've ever been. I mean that. Firetower at summit is roped off and closed, so I didn't try to go up. I also had to leave because the bugs were so bad. Couldn't even stop for a minute without being swarmed.

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Brandon Stark
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HikingBugsMuddy

Tons of bugs! some mud, but worth it.

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Amy Donohue
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HikingBugs

Great hike but very buggy.

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Christopher Burns
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HikingBugsMuddy
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Sean Hayes
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HikingIcyMuddyRockySnow

Great hike up the Lambert Trail, steep steep at beginning but gets better as you go. Some great ledges with views along the way. Eventually hit lots of ice and plenty of tricky spots going up. Without spikes forget it! Nice fire tower at the top of Smarts. Headed back down Ranger Trail big mistake! It was like hiking in a stream bed for quite a ways, not enjoyable and very wet! Would recommend going back on Lambert, much more scenic and enjoyable. Finally hit the Jeep trail, not much of interest and very muddy!

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Hunter Kiessling
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HikingBlowdownFloodedIcyMuddySnow

Lots of weather and miscellaneous factors to this hike. We climbed the shorter side (Ranger Trail, counterclockwise ) which was mostly mud for the extent, some parts so flooded there is little option but to wade through. The last mile or so turned to ice and then there’s about a foot of relatively fresh snow at the peak. Few people on the trail and a windy day, the way down is longer but more moderate and has many views. Spikes are necessary and prepare for winter conditions as there is more snow than expected.

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Sheri Tomkiewicz
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HikingFloodedMuddySnow

Hiked 4/11/20 Right half of the loop is a stream, lots of mud and water. Snow at the peak, spikes certainly helpful. Fire tower and several lookouts if you do the whole loop. Great views!

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