Core Geophysics of Perth has commenced a large nickel laterite exploration survey in Papua New Guinea. The site, which had been surveyed by Groundradar using consumer-grade Mala RTA instrumentation in 2007, is extremely remote and rugged. Frequent steep slopes, ravines and river crossings are encountered each day. UltraGPR performed flawlessly, being able to map the depth to rocky saprolite and bedrock throughout the project.