The A542 road to the Horseshoe Pass offers some of the most spectacular views in Wales as it climbs from Llangollen around a wide valley to form the shape of its name.
An annual stage in the now defunct Tour of Britain cycle race, the steady incline of the road reaches a maximum height of 417 metres or 1,367ft in old money.
This particular route dates from 1811 as part of a major turnpike road constructed across the area and replaced the less spectacular, but extremely steep, Bwlch Rhiwvelen. Due to the altitiude the Pass is frequently closed in winter due to heavy snowfalls.
Slate quarrying began in the area during the 17th century and became a major industry in the 19th century. The quarries closed during the 20th century and some have filled with water. The disused cliff faces are home to ring ouzels and have held choughs.
There has been a café near the summit of the Pass since about 1930 when water had to be brought up by mules. The current building is called the Ponderosa Cafe and is popular with tourists, motorcyclists, and even helicopters, which can land there. To the south of the Pass is the Britannia Inn which was built in the 14th century by monks from
Valle Crucis Abbey.
The Pass is a good starting point for moorland walks and trails to the summit of Llantysilio Mountain.