Archaeology prospecting can be greatly enhanced by aerial photography before excavation due to the fact that a strong visual contrast of ground-based features is presented by aerial photography of an excavation site. An aerial perspective produces immediate visual information that is not discernible from the ground. Even the most well trained eye of a specialist surveyor can miss outstanding features if the archaeology site is only surveyed at ground level.
With digital imaging technologies being a cost-effective method of data collection, excavation site directors would be imprudent not to include aerial photographs as part of the initial survey work. Also, aerial photography can provide a timed progress perspective from season to season showing the progress or otherwise of the excavation from an aerial vantage point. This can be especially helpful to assist financial donors to understand the extent of the overall archaeology excavation site.