To ascend Jefferson via the above described route, you will park at the Great Gulf Trailhead. It is located directly across from Camp Dodge on route 16. It will be 4.1 miles North of Pinkham Notch Visitor’s Center.
The trail begins gently on the Great Gulf Trail for quite some time. It’s a nice warm up and the forest is beautiful. I love the landscape of the Northern Presidentials, even below treeline.
There are two large bridges to help you cross the Peabody River. This section of the trail may be confusing to some. There are multiple intersecting trails including the Great Gulf Link Trail which will eventually lead to the Dolly Copp Campground.
I found the crossings to be easy and there multiple areas to safely cross. With a heavy rain, that could all change.
After 4.5 miles you will come to the intersection of the Six Husbands Trail. Take a snack break soon as there is an obstacle course ahead! This is also the last sure water so fill up if you need to as well!

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Photo credit: Inna Radzihovsky |
The trail then ascends a steep ledge on two back to back ladders and continues to another pair of ladders below an overhanging ledge. The ladders were a lot of fun and were very secure on the rocks, but this section may be dangerous if wet or icy.
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Photo credit: Inna Radzihovsky |
There is one last ladder which is much newer than the others. I don’t think this ladder is very necessary, but it would be helpful in wet weather when it may be more difficult to ascend otherwise.
Shortly after the last ladder, you will scramble up a rocky ridge and reach the top of the knee. The view is gorgeous from here.
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Photo credit: Inna Radzihovsky |

From the summit are rewarded with views of Mt Adams (above) Mount Washington and the auto road (below)
I was told to do something… |
On the way down to the Sphinx Trail we saw two AT NOBO thru hikers. One was from New York and the other Florida. I was surprised to see any Northbounders this late. They seemed to be having a blast in New Hampshire!
I had done a lot of research when deciding my route. We made a lollypop loop by hiking down the Sphinx trail which connects back to the Great Gulf, but further up.
The Sphinx is steep and wet. Because of this it is slow going. I did notice how great the trail looked and free of running water. Thanks Chris Dailey for your hard work on the Sphinx!
There was only one time we questioned the route. The crossing above looked a little sketchy and there was a trail leading in another direction that had a couple blowdowns across it. I assumed the path with blowdowns wasn’t the way to go. A quick look at my map and I could see the trail crossed water. I decided to check it out while waiting for the rest of my group to catch up. It led to a stealth campsite. Across the water we went! There is a very small cairn to signal where to go and I did add a couple rocks to it as it looked like it had been knocked over.
There are numerous small waterfalls on the way down. I would say to slow down and take it all in, but the trail is too steep to go very fast!
The upper section of the Great Gulf trail has a handful of blowdowns, but nothing too serious. I am a fan of some trail obstacles, especially in wilderness areas. I don’t like my trails to be easy!
Because of the views we did take more breaks and photos and got down later than we anticipated. For this route aim for 10+ hours on the trail. This 14.8 mile hike is a real beast!
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Map created on WMG Online |
Mt Jefferson Loop from allison on Vimeo.
Last modified: September 2, 2017
great write up Allison Loved the funky music and the speedy video 🙂 was a fun trip d
An excellent report with great photos. I want to do this hike, and will refer back here to supplement the info from wmgonline. Thank-you for sharing, and congratulations.
Awesome write up! Looking to do this route later this week/weekend if the weather permits! Might be getting icy!
Did much of this 50+ years ago in reverse…. Down over the knee of Mount Jefferson into the Great Gulf…. Ladders were very primitive. Had I been older, I might have been less adventuresome.
After reading your review I decided to do this hike on 10.15.20 . It was spectacular! Your photos capture all the tough parts. Saw no one. Weather was perfect but windy. Didn’t have the time or energy to go to the summit. I was surprised how hard and slow the Sphinx was but the waterfalls were lovely. I lost the trail at exactly the same spot you did. I find Guthook to be very helpful. Thanks for the review.