An archaeologist wants to survey the West Coast of South Africa for rocky outcrops that could signal the nearby presence of shell midden sites. Which of these approaches would be most suitable for reconnaissance before conducting a surface survey on foot?

The most suitable approach for reconnaissance before conducting a surface survey on foot would be: **3. Pan-sharpened satellite imagery** Pan-sharpened satellite imagery provides high-resolution images that can reveal geological features, rocky outcrops, and potential archaeological sites from a broader perspective, making it a valuable tool for initial reconnaissance. While historical maps and place name research can provide context, satellite imagery allows for a more detailed and immediate assessment of the landscape that could indicate the presence of shell midden sites. Google Earth imagery, while useful, may not be as detailed as specially processed pan-sharpened satellite imagery.