068W0230 https://collections.naturalsciences.be/ssh-geology-archives-plone6/boreholes/descriptions/ocr-descriptions/068w/068w0230 https://collections.naturalsciences.be/ssh-geology-archives-plone6/@@site-logo/logo-rbins.jpg 068W0230 PL. IZEGEM 68W A.RUTOT N° 230 (III) Indications manuscrites sur la carte au 20.000° Sondage 1m00 Q3 Yd