Andrew Zolnai
Andrew Zolnai promotes web mapping and volunteer geo info at Zolnai.ca. For almost a decade in EMEA he held geospatial lead and subsurface integration positions. The prior decade in the US he was petroleum manager with Esri and senior consultant Landmark Halliburton. His first decade in Canada he held various positions in petroleum data management, GIS and field mapping. He is Certified Petroleum Geologist with over a dozen refereed and industry publications.