Integrating multi-method geophysical prospection and UAV data for uncovering British colonial history in Ghana

This study integrates multiple geophysical methods with UAV data to investigate a fort at Tantumquery, a British colonial site in Ghana. The research combines UAV photography, Electrical Resistivity Tomography, and Ground Penetrating Radar with traditional archaeological techniques to uncover previously unidentified features. This approach reveals architectural elements including walls, a cistern, and various artifacts (pottery, pipe stems, metal items). Significantly the method recovered musket balls – the first ever discovery of such nature in Ghana. The study demonstrates how this methodological framework effectively identifies subsurface anomalies and archaeological relics, establishing a replicable protocol for colonial archaeology in West Africa.