Grabbist Hill
Open accesson National Trust land that is open on foot at all times
Earthworks onlybanks, ditches and platforms — read the ground, not walls
Grabbist Hill is one of 29 hillforts the Albion Guide lists in Somerset. It sits inside Exmoor National Park. The nearest other hillfort is Bat's Castle, 1.7 km to the south-east.
More at the National Heritage List entry