The Mocoa deposit is located near the Ecuador border 10km from the town of Mocoa.  It was discovered in 1973 when the United Nations (UN) and the Instituto Nacional de Investigaciones Geológico Mineras of Colombia (INGEOMINAS), now the El Servicio Geológico Colombiano (SGC), conducted a regional stream geochemical survey.  Between 1978 and 1983, an exploration program was carried out that consisted of geological mapping, surface sampling, ground geophysics (IP, magnetics), 31 diamond drill holes totaling 18,321m, and preliminary metallurgical testwork.  B2Gold subsequently executed diamond drill programs in 2008 and 2012.