Its extreme eastern corner is situated on granite, where it meets with
the parishes of St. Columb Major and St. Dennis. The remainder of this
parish rests on rocks of the schistose group; the part next the
granite belonging to the porphyritic, and that more remote to the
calcareous series, conformably, in all respects, to the geology of St.
Colomb Major.
[42] The last representative of this family resided in
Surrey, and died about the year 1770.