Bryncroes is a large inland parish near the S.W. end of the peninsula. It is mostly low-lying enclosed pasture; the  W.  part was reclaimed during the 19th century from the peaty tract of  Rhoshirwaun, much of which is still very rough.  The stone-axe factory on Mynydd Rhiw (No. 1535 and p. xlviii above) lies in this parish; there is no other important monument.
Ty Fair (SH 25293095, 44 N.W.) now displays no visible remains; according to local tradition¹ a ruined building formerly stood on the site and graves had been found there.