Trevithal From Wikipedia, the free encyclopedia Trevithal (grid reference SW462266) is a hamlet in Penzance, Cornwall, England, United Kingdom.[1] References [1]Ordnance Survey One-inch Map of Great Britain; Land's End, sheet 189. 1961 50°05′09″N 5°32′53″W This Cornwall location article is a stub. You can help Wikipedia by adding missing information.vte Related Articles