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

Difficulty: Strenuous

Duration (book time): 4.5 hours

Trails

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.

Trail Map

Mount Jefferson Trail Map

Alternative routes

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.

Mount Jefferson Castle trail

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.

Mount Jefferson Trail Views

Looking over at Mt. Jeffersons Southern neighbor, Mt. Washington.

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.

Mount Jefferson Trail Guide

Trail junction

Parking

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.

Castle Trail

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

Jewell trail

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.

Directions

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.

Weather

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.

Gorham, NH

Overnight
Mostly cloudy, with a low around 60. Northwest wind around 15 mph.

Saturday
A slight chance of showers and thunderstorms between 8am and 11am. Sunny, with a high near 73. West wind around 15 mph.

Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. West wind 15 to 30 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

Sunday
A chance of showers and thunderstorms. Some of the storms could produce heavy rain. Mostly cloudy, with a high near 68. West wind 25 to 30 mph. Chance of precipitation is 40%.

Sunday Night
A chance of rain showers before midnight. Partly cloudy, with a low around 54. Northwest wind 30 to 55 mph, with gusts as high as 70 mph. Chance of precipitation is 40%.

Monday
A chance of rain showers after noon. Partly sunny, with a high near 60. Chance of precipitation is 40%.

Monday Night
Rain showers likely. Mostly cloudy, with a low around 48. Chance of precipitation is 70%.

Additional photos

Mount Jefferson Trail Sign

Trail junction for Gulfside trail and Six Husbands

Mount Jefferson Views