Cat 3

North Groton via Halls Brook Road

New Hampshire, united-states

North Groton via Halls Brook Road covers 8.9km and 340m of climbing, reaching 476m at the summit. The average gradient of 3.8% disguises ramps of 11.9% — the kind of gradient that turns plans into prayers. Located in New Hampshire, United-states.

  • A false flat around km 3 offers brief respite before the road kicks up again.

North Groton via Halls Brook Road

New Hampshire, united-states

8.9km 340m 3.8%
3

Distance

8.9km

Avg Gradient

3.8%

Max Gradient

11.9%

Elevation Gain

340m

Summit

476m

Wall Rating

3.6

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