| Porlock Hill | |
|---|---|
 The start of Porlock Hill, where the toll road branches off to the right | |
| Highest point | |
| Elevation | 347.8 m (1,141 ft)[1] |
| Listing | Marilyn |
| Coordinates | 51°12′25″N 3°36′19″W / 51.206873°N 3.605371°W |
| Geography | |
  Porlock Hill Exmoor, England | |
| OS grid | SS86384603 |
| Topo map | OS Explorer OL9 |
Porlock Hill is a road west of Porlock, Somerset. It is part of the A39, connecting Porlock to Lynmouth and Barnstaple in Devon and is the steepest A-road in the United Kingdom, approaching 1 in 4 (25%) in places. A toll road is available which connects the same two endpoints at the top and bottom of the hill at an easier gradient.
- ^ "Detailed maps & routes to explore across the UK | OS Maps". Retrieved 27 April 2024.