Contour Mapping

1:25,000 scale map covering the Dragon's Back in the Brecon Beacons (approx. center SO175305).

Known as Y Grib, the small but defined ridge of the Dragon's Back rises up onto the plateau of the Black Mountains.

1:25,000 scale map covering the Dragon's Back in the Brecon Beacons (approx. center SO175305).

Known as Y Grib, the small but defined ridge of the Dragon's Back rises up onto the plateau of the Black Mountains.

1:25,000 scale map covering the Dragon's Back in the Brecon Beacons (approx. center SO175305).

Known as Y Grib, the small but defined ridge of the Dragon's Back rises up onto the plateau of the Black Mountains.

1:25,000 scale map covering Ben Nevis in the Scottish Highlands (approx. center NN165715).

The UK's highest mountain not only forms part of the national 3 peaks challenge but also boasts one of the most challenging descents in poor weather off any "easily walkable" mountain on our isles.

1:25,000 scale map covering Ben Nevis in the Scottish Highlands (approx. center NN165715).

The UK's highest mountain not only forms part of the national 3 peaks challenge but also boasts one of the most challenging descents in poor weather off any "easily walkable" mountain on our isles.

1:25,000 scale map covering Ben Nevis in the Scottish Highlands (approx. center NN165715).

The UK's highest mountain not only forms part of the national 3 peaks challenge but also boasts one of the most challenging descents in poor weather off any "easily walkable" mountain on our isles.

1:25,000 scale map covering Pen-y-ghent in the Yorkshire Dales (approx. center SD839734).

1:25,000 scale map covering Pen-y-ghent in the Yorkshire Dales (approx. center SD839734).

1:25,000 scale map covering Pen-y-ghent in the Yorkshire Dales (approx. center SD839734).

1:25,000 scale map covering Pen-y-ghent in the Yorkshire Dales (approx. center SD839734).