Leat system associated with Castell Mine (Nprn33822).
Two leats spring from Afon Castell, running parallel to one another, c.2.5km SW to the mine.
A single leat runs c.800m NW then NE, spring from Nat Fucheswen reservoir (Nprn309807).
Depicted on OS County series (1887; 1891).
RCAHMW AP955040/52-5; 955041/56-9
J.Wiles 19.01.04