Franconia NotchState Park
Early 1900s view of the Basin, a granite pothole below a small waterfall

The Basin

The Basin is a round granite pothole 20 feet across at the foot of a waterfall on the Pemigewasset River, in the middle of Franconia Notch State Park. It's an easy, roughly 10-minute walk on paved paths from its own parking pull-offs on I-93, northbound and southbound. NH State Parks lists it as open year-round and wheelchair accessible for viewing the Basin. No entry fee is listed for it. From here the Basin-Cascades Trail climbs 0.5 mile to Kinsman Falls.

At a Glance

The Basin at a Glance

What it isA 20-foot granite pothole below a waterfall
WalkAbout 10 minutes on paved paths
AccessWheelchair access to view the Basin
ParkingOwn I-93 pull-offs, both directions
SeasonYear-round
NearbyKinsman Falls, 0.5 mile up the trail

What You'll See

The river drops over a ledge into a smooth, bowl-shaped hole in the granite. Stones and sand swirled by the current wore it into shape, which is why the rock is polished rather than rough. Just below the Basin, look for a water-worn rock formation called the Old Man's Foot.

NH State Parks says the Basin was eroded while the North American ice sheet was melting. Its documents put that at more than 15,000 years ago in some places and 25,000 in another, so the exact age depends on which page you read.

Accessibility

NH State Parks describes paved paths with moderate uphill and downhill sections and says the site is handicap accessible for viewing the Basin. Picnic tables are near the parking.

Parking and Getting There

Kinsman Falls and Rocky Glen Falls

Kinsman Falls is what NH State Parks calls a beautiful, secluded and often overlooked waterfall on Cascade Brook. From the Basin, follow the Basin-Cascades Trail for 0.5 mile, about 20 minutes one way. The brook has potholes and ledges the whole way up. A rough side path on the left drops to the cool base of the falls.

Keep going a short way on the main trail and a brook crossing on the left leads to Rocky Glen Falls (the state's sheet spells it Rocky Glenn). There are no bridges over the brook, so crossings depend on the water level. After heavy rain, turn back rather than wade.

Boise Rock

Boise Rock is a large boulder nearby in the Notch, with its own pull-off on the northbound side of I-93 only. The story the state tells: in the early 1800s Thomas Boise, a teamster from Woodstock, New Hampshire, was caught on the Notch road in a blizzard. He sheltered under the rock, killed his horse, and wrapped himself in its hide. Searchers found him the next day and had to cut the frozen hide off him. It had saved his life.

Today the pull-off has a cool spring, picnic tables and, the state says, an exceptional view of Cannon Cliffs.

Good For

Maybe Skip If

FAQ

The Basin FAQ

How long is the walk to the Basin?

About 10 minutes from the parking pull-off, on paved paths with some moderate ups and downs, according to NH State Parks.

Is the Basin in Franconia Notch free?

NH State Parks lists no entry fee for the Basin. The park's fees are charged at the Flume Gorge and Echo Lake Beach.

Is the Basin wheelchair accessible?

Yes. NH State Parks says the Basin has paved paths and handicapped access to view the Basin, with some moderate slopes.

How do you get to Kinsman Falls?

Follow the Basin-Cascades Trail from the Basin for 0.5 mile, about 20 minutes one way. A rough side path on the left leads to the base of the falls. There are no bridges over the brook.

What is Boise Rock?

Boise Rock is a boulder in Franconia Notch where teamster Thomas Boise survived an early-1800s blizzard wrapped in his horse's hide. It has its own northbound pull-off on I-93 with picnic tables and a view of Cannon Cliffs.