Led by Chris Mace, volunteers conducted a survey of a sandstone quarry at Nab Hill, Oxenhope during the wet summer of 2012. The reports are available to download here.
- Mace, C. 2012. Nab Hill Delphs, Oxenhope Moor: 1840-1905. A Geological and Historical Assessment. Volume 1. Unpublished Report from Pennine Prospects.
- Mace, C. 2012. Nab Hill Delphs, Oxenhope Moor: 1840-1905. A Geological and Historical Assessment. Volume 2. Unpublished Report for Pennine Prospects.
- Mace C. Nab Hill Delphs Survey, Oxenhope Moor.Unpublished Report for Pennine Prospects.
- Varley. W. 2012. Nab Hill Delphs Survey. Photographic Survey. Unpublished Report for Pennine Prospects.
