Marshy ground by Blackleach Reservoir (SD7303); along the spring lines along the
river slopes below Kersal Cell (SD8101) which may be the boggy part of Kersal
Moor mentioned by Melvill (1882). It is not known at this stage whether the record
for (SJ69W, MPG Tolfree, 1996) is from the Warrington or Salford Borough.
