Mount Jefferson is a 5,712 foot mountain located in the Presidential Range of the White Mountains of New Hampshire. It is the third tallest mountain on the official 48 4,000 footers list. Mount Jefferson lies between Mount Clay to the South and Mount Adams to its North. The summit offers expansive views of the rest of the Presidential Range including its Southern neighbor, Mount Washington.
Elevation: 5,372 feet (1,637 meters)
Elevation gain: 2,720 feet
Length: 5 miles roundtrip
Duration (book time): 4.5 hours
Caps Ridge Trail – 2.5 Miles One Way – (2,720 feet of elevation gain)
Start your hike by following the Caps Ridge Trail for 2.1 miles until you reach a trail intersection with The Cornice. Here, you will stay straight and continue on the Caps Ridge Trail for another 0.4 miles until you reach the summit of Mount Jefferson. The first section of the trail is relatively flat and easy, while the second portion of the trail includes challenging rock scrambles and ladders.
Great Gulf trail – 7 Miles One Way – (4,300 feet of elevation gain)
Another more difficult approach to summit Mount Jefferson is from the Great Gulf by the Six Husbands Trail. Both trails ascend Jefferson’s Knee, a series of rock scrambles and ladders (7 miles and 4,300 feet one way). This route is not recommended for descent. This route is recommended for experienced hikers only and should not be attempted in wet or icy conditions.
Castle trail – 4.8 Miles One Way – (4,200 feet of elevation gain)
Another option for summiting Mount Jefferson is by taking the Castle Trail. There is roughly 4,200 feet of elevation gain over 4.8 miles, making it a rather challenging climb.
Jewell Trail – 5.5 Miles One Way – (3,750 feet of elevation gain)
Another approach to summit Mount Jefferson is to hike up the Jewell Trail, starting at the Base Station, and connect with the Gulfside Trail (5.5 miles one way, with 3,750 feet of elevation gain). This route is somewhat less rugged and demanding than other routes, but a good portion of the trail is entirely exposed for an extended period of time.
Hiking in Winter
Winter conditions in the presidentials are brutal and unforgiving. Jefferson Notch Road is unplowed and gated during the winter season, making access to the Caps Ridge trail nearly impossible. A winter ascent on Mount Jefferson is most commonly approached by taking the Lowe’s Path and Randolph Path to Edmunds Col and the Castle Trail. These routes are exposed and require special equipment and skills. Winter above tree line poses a major risk and can be extremely challenging to navigate in low visibility.
Camping and Overnight Hiking Options
The Randolph Mountain Club (RMC) has four shelters in the immediate area including Log Cabin, Gray Knob Cabin, The Perch and Crag Camp. Each shelter requires a fee to stay overnight and do not accept prior reservations.
Caps Ridge Trail
The trailhead parking for Caps Ridge trail is located on Jefferson Notch Road in Thompson and Meserves Purchase, New Hampshire. A parking permit is required to park at White Mountain National Forest trailheads and parking areas. Rates go for $3 per day. Jefferson Notch Road is closed from late fall until late spring.
The trailhead parking for the Castle trail is located in Randolph, New Hampshire. It will be the second trailhead sign on the left after Lowe’s Store. Directions Here
The trailhead parking for Jewell trail is located on the Cog Railway Base Station Road, roughly 1 mile from the four way crossing with Mt. Clinton road and Jefferson Notch road. A parking permit is required to park at White Mountain National Forest trailheads and parking areas. Rates go for $3 per day. Directions Here. If this is full, there is a second trailhead further down the road.
To get to the Caps Ridge Trailhead parking area
Traveling West on Route 302: Turn right on Mount Clinton Road, directly past the AMC Highland center, and continue straight for 3.6 miles. At the crossroads, continue onto Jefferson Notch Road and follow the dirt road for 3.4 miles. The parking area will be on the right hand side of the road.Traveling East on Route 302: Turn left onto Base Station Road. The turn is about 4.4 miles East of the junction of Route 3 and 302. Drive straight for about 4.5 miles. At the crossroads, make a left turn onto Jefferson Notch Road. Continue on the dirt road for 3.4 miles until you reach the trailhead parking lot, which will be on the right hand side. *NOTE* Jefferson Notch Road is open only in the summer and early fall. Be sure to check the latest gate status updates and road closures.
Much of the trail is entirely exposed above tree line, so be prepared and check the weather forecast religiously. Sustained winds of over 100 miles per hour are not uncommon and freezing temperatures, sleet and snow can occur during any month of the year. If the weather is bad, turn back immediately.
Mostly sunny, with a high near 37. South wind 25 to 30 mph.
Rain and snow after 7pm. Cloudy, with a low around 31. Southeast wind 25 to 60 mph, with gusts as high as 75 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Snow before 9am, then rain and snow. Cloudy, with a high near 35. Northeast wind 40 to 65 mph, with gusts as high as 85 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Snow likely before 8pm, then rain and snow likely. Mostly cloudy, with a low around 30. North wind 30 to 45 mph, with gusts as high as 55 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
A chance of snow showers. Mostly cloudy, with a high near 35. Northwest wind 40 to 45 mph, with gusts as high as 60 mph. Chance of precipitation is 40%. New snow accumulation of less than one inch possible.
A chance of snow showers before 8pm, then a slight chance of snow. Mostly cloudy, with a low around 26. Chance of precipitation is 30%.
A slight chance of snow before 8am. Mostly sunny, with a high near 41.