Located near Millers Dale, a short pitch (abseil and ladder up) leads to up to 600m of Sough and enlarged natural cave. We rekkied this on a pretty wet day and the water level was never uncomfortable.
contact Larry for details
PDMHS descriptions of the Sough and Mine
https://www.tsgcaving.co.uk/content/Trip-Reports/maury-sough-alan-brentnall
http://www.winstercavers.org.uk/PhotoGallery.aspx?GalleryID=8
https://historicengland.org.uk/listing/the-list/list-entry/1412310