This layer shows petroleum wells for which GNS has compiled graphical presentations of downhole well information such as lithology, stratigraphy, geochemical sampling and geophysical logs. It is a view based on the Petroleum Wells dataset and is updated spasmodically as new well sheets are created.

Updated DSDP, ODP and IODP borehole locations, related metadata and links back to host site data repositories. Generated from kml files available at http://www.iodp.org/borehole-map