about 9 miles.
            Explorer Maps No 305 and OL31, - Bishop Auckland / North Pennines
           The walk proved to be a total delight, - the more so 
            as the pleasure was somewhat unexpected in an area which has previously 
            been heavily industrialised with coal mining, lead mining, quarrying, 
            and railways. Nowadays there are glimpses of the industrial past, 
            but otherwise the walk takes in meadowland, woodland, and heathland.
            Although we made the walk in early June, it would almost certainly 
            be as enjoyable at almost any time of the year.
            
            For the most part navigation is straightforward. However, we did manage 
            to get "lost" in a couple of places where the waymarks weren't 
            quite up to scratch. In particular, we somehow managed to end up in 
            the village of Woodland rather than Lynesack, which added a good mile 
            or two onto the distance. If you study the map closely, though, you 
            shouldn't have this problem.
         
        
        
          For a Memory Map overlay of the walk described, please select the above 
          link. 
          (Overlay made with Version 4 of Memory 
          Map) 
        
         The walk description below is adapted from one which 
          appeared in the Darlington & Stockton Times some while ago. However, 
          some differences have been made to the original (8 mile long) described 
          walk.
          
          Start from the excellent visitor centre at The Slack, near Butter-knowle, 
          (GR 113253, open daily from 11am to 3pm from Easter to the end of September 
          and at weekends in the winter). However, there is VERY limited parking 
          in the vicinity and you will need to respect the privacy of local residents.
          
          With your back to the centre, go left along the road and almost immediately 
          left along a lane which runs next to the River Gaunless. In 200yds, 
          go straight over at a road junction, signed to Toft Hill (B6282).
          Where the road turns sharp left in about 150yds, go ahead on a foot¬path 
          to cross the river by a concrete bridge. Continue for the next mile 
          or so on the trackbed of the former Haggerleases line, a branch of the 
          Stockton & Darlington Railway, built in 1830 for transporting coal 
          from the local mines.
          In 300yds, re-cross the Gaunless by the Skew Bridge of James Wilson 
          of Pontefract, Builder, 1830, as the plaque proudly proclaims. It is 
          an early example of a bridge built askew without a keystone to accommodate 
          the acute bend of the river. The line now straightens out along the 
          riverside, flanked by the fell on the right.
          The huge abutment towers of the Lands Viaduct soon come into sight, 
          built by Thomas Bouch in 1862 to carry the line from Bishop Auckland 
          to Barnard Castle and sadly destroyed when the line closed in the 1960s. 
          In another 200yds, we leave the track by going right over the Gaunless 
          and on to Cockfield Fell.
          Bear left after the bridge on a path which climbs parallel to the remains 
          of a tramway which once took coal from a nearby colliery to the Haggerleases 
          line. Beyond Fell Houses, follow the access track which almost immediately 
          crosses a deep trench where hard volcanic whinstone, part of the Cleveland 
          Dyke, was quarried for road-making.
          Shortly afterwards, turn right off the track across the rough pasture 
          of the open fell, heading for the wall which encircles Cockfield cemetery. 
          
          Where the footpath meets the edge of Cockfield village, head South to 
          the High Street then walk West along the High Street.
          Continue to Hollymoor Farm. A hundred yards beyond the farm cross a 
          road to Burnt Houses and, leaving the fell, take a path across three 
          fields to Scotland Lane. Turn right, following the lane along the edge 
          of the Raby estate and then across Shotton Moor. The trackbed of the 
          line to Barnard Castle is crossed in about half a mile.
          Just beyond Gibbsneese Farm, the right of way bears right and heads 
          for the prominent chimney of the Gaunless or Copley lead smelting mill. 
          
          Re-cross the Gaunless by the site of the mill and turn left on the bridleway 
          behind what was the house of the mill manager. Continue along the track 
          though woodland, until on your right you come to the track leading to 
          Steele House. Continue past the house to more woodland and descend to 
          cross the River Gaunless. On the other side of the river is a clear 
          footpath that is waymarked as the Gaunless Valley Circular>
          Follow the footpath, but then turn right along the footpath to Lane 
          Head. 
          Turn right in the village street and almost immediately left on a path 
          to the hamlet of Howie. Here the right of way bears to the left of West 
          Gate Close to a junction of paths in front of the other two farms.
          Go to the right of the right-hand farm, Thompson's Howie, cross Howie 
          Beck and follow it downstream into Lynesack, where you go left along 
          the village street. 
          A literary diversion could be made here, first left, to visit the grave 
          of Edward Smith, the inspiration for Smike in Dickens' Nicholas Nickleby. 
          It is to be found by the hedge, a few yards west of the church. 
          Return afterwards to the village street.
          Continue for another 100yds to The Hill, a house on the left, where 
          a path leads across fields to Raines House. Go straight ahead here on 
          a farm track to the 18th century farms of Potter's Cross.
          Take the access lane, right, leading from the hamlet and, in about 150yds, 
          look out for a stile in the wall on the left.
          From here, a path leads over three fields to a large bungalow. Now turn 
          left along the road leading to the hamlet of South Side.
          Just beyond the terrace of houses called Moorside, go right on a bridleway 
          which descends to the confluence of three becks. Cross three footbridges 
          in order to arrive on the left bank of Crow Howie Beck. Here, until 
          a century ago, was the thriving Butterknowle Colliery. All that remains 
          is the spoil heap and a range of coke ovens in the undergrowth on the 
          left.
          In less than half a mile, the path reaches The Slack, where you turn 
          left down the road to the Gaunless and the visitor centre.