Parking and Approach

From Junction 28 of the M4 follow the A467 to Brynmawr (as for Sirhowy). Approximately 2km after passing through Abercarn is a Shell petrol station set in a large quarry on the right hand side of the A467. Just past the petrol station is a double set of traffic lights on a staggered junction (right is the A472 to Pontypool leading to Tirpentwys, left is the B4521 to Blackwood). Approximately 100m beyond these lights take a dedicated right turn to Crumlin Road, just past the 'SOFA SOFA' warehouse on right. Follow the road around to the left and park opposite the bus stop. Opposite the bus stop is an asphalt path leading up, passing the rear gardens of houses on Upper Viaduct Terrace. At the end of the path are some corrugated steel garages. Turn left and follow a rough level track past the garages. This track carries on for approximately 200m until it starts to narrow and passes below a tall masonry retaining wall on the right. The track leads up to the end of the wall and some broken concrete fence posts, stop! At this point the track branches, take a poorly defined and steep path straight uphill through bracken for 20m until you land in the base of Monk