survey Smithy centreline #compilation file for Smithy area of Doolin Cave input Smithyclosedloop.th input SmithyStream.th equate 27@Smithyclosedloop 27@SmithyStream input Smithycomplex.th equate 28@Smithyclosedloop 20L@Smithycomplex input SmithyLink.th equate 12L@Smithycomplex 4@SmithyLink endcentreline endsurvey