This is a 3-year a NSF REU project that will involve imaging the subsurface structure of the Bushveld Complex in South Africa using passive source data. Five BB stations will be deployed, starting in the east, and each year students will retrieve data and move the stations to new locations, working towards the west. Over the 3 year period, an E-W transect of stations will have been deployed across the center of the Bushveld Complex.