There is a condition restricting the output of gritstone from the Old Hutton quarry each day to 400 tonnes. |
One or two gritstone quarries provide important nesting sites for peregrines and ravens. |
Work has involved replacing the original limestone steps with gritstone that will be less slippery. |
The War Memorial Obelisk stands about 20 foot high on an outcrop of gritstone and is brilliantly situated. |
The path leads straight to the sombre gritstone memorial on the edge of the moorland spur. |
What we didn't expect was to find the thing perched on a weather-sculpted and bus-sized block of gritstone. |