The Basin
A short accessible approach reveals a deep circular basin, cascades, and continuation trails along the river.
Artwork inspired by Abbott Handerson Thayer
A glacial pothole spins the Pemigewasset into polished granite. A short accessible approach reveals a deep circular basin, cascades, and continuation trails along the river. Its character becomes clearest where circular pothole meets Pemigewasset River, with granite cascade adding a less obvious but equally useful point of comparison.
Watch the water’s rotation from the formal overlook before following the safer riverside path. Barriers mark real hazards; wet ledges and fast water are not swimming access. The experience feels complete when granite cascade is read alongside Pemigewasset River, not saved as an optional detail after the headline view.
- Diameter
- About 30 feet
- Depth
- About 15 feet
- Formation
- Glacial pothole
Quick guide
- Start with
- Watch the water’s rotation from the formal overlook before following the safer riverside path.
- Look closely at
- Pause at Pemigewasset River before moving to granite cascade, where the site’s larger story becomes easier to read.
Know before you go
- Start with
- Watch the water’s rotation from the formal overlook before following the safer riverside path.
- Look closely at
- Pause at Pemigewasset River before moving to granite cascade, where the site’s larger story becomes easier to read.
- Connect the story
- Use the circular pothole to visualize glacial meltwater and present river flow repeatedly grinding the same granite chamber.
- Plan around
- Review hours, admission, parking, and access together before planning The Basin; each addresses a different practical constraint.
Good to know
Barriers mark real hazards; wet ledges and fast water are not swimming access. Confirm the current schedule and access conditions before setting out.
Notice these
- circular pothole
- Pemigewasset River
- granite cascade