The Deep Hole
Gilsum · Monadnock Region
The Deep Hole is a very local Gilsum swim page built around the stone arch bridge and the Ashuelot River pool below it. It has the kind of hidden-in-plain-sight feel this project needs, but it is still moving water with informal access, so the right tone is scout-first rather than overhyped.
Key facts
Swimming
Local river-pool swimming below the Gilsum stone arch bridge. It is informal, current-sensitive, and worth treating cautiously
Access
Short roadside bridge access
Parking
Limited
Current conditions
Trip profile
Difficulty
Reward
Risk
Good fit, skip if, before you go
Good fit
Local-feeling river swims with a strong visual hook
People exploring lesser-known southwest New Hampshire water
Quick dip stops that still feel distinctive
Skip
Jump culture or ledge play is the main goal
The river is high, brown, or pushy
You need a formal beach or obvious staffed facility
Before you go
- Use the bridge-area pull-off conservatively and confirm roadside conditions on arrival.
- Respect posted rules and day-of closures if they exist.
- Check footing, depth, current, and exit options before entering the water.
- Pack out trash and leave access points cleaner than you found them.
- If the stop feels wrong in person, make it a look-only visit.