What is "nidderdale"

Nidderdale is one of the Yorkshire Dales (although outside the Yorkshire Dales National Park) in North Yorkshire, England. It is the upper valley of the River Nidd, which flows south underground and then along the dale, forming several reservoirs including the Gouthwaite Reservoir, before turning east and eventually joining the River Ouse.

The only town in the dale is Pateley Bridge. Other settlements include Wath, Ramsgill, Lofthouse, and Middlesmoor above Pateley Bridge, and Bewerley, Glasshouses, Summerbridge, Dacre, Darley, Birstwith, Hampsthwaite and Kettlesing below Pateley.