011W0001 https://collections.naturalsciences.be/ssh-geology-archives-plone6/boreholes/descriptions/ocr-descriptions/011w/011w0001 https://collections.naturalsciences.be/ssh-geology-archives-plone6/@@site-logo/logo-rbins.jpg 011W0001 PL. HEIST 11W A.Rutot 1894-1895 1 (IV) alq Sondage: Sable jaune, meuble, aquifère 1m50 3.25