Lines of foundations and dark zone of a small Gallo-Roman temple. Tilloy-Floriville (Somme).
Same site, but against the light. Only the dark, clayish zone can be seen.
Main residence of a Gallo-Roman villa, taken in the winter at Saint-Just-en-Chaussée (Somme).
Same site in the summer, amidst the grain.
Protohistoric funerary enclosure, taken in early April at Bertangles (Somme). The grain is growing faster over the place where there are filled-in ditches.
The same site in late June, after a storm. The stalks of grain that have grown too high over the ditches have fallen over.