In ancient times, Vignacourt was totally wooded. The Celtic forest extended from Paris to Belgium. Deforestation has began with the exploitation of this fertile land.
At the end of the 16th century, the Vignacourt forest covered 400 hectares.
After decades of deforestation in Picardy, the trend was reversed with increasing one third of its surface in one century, despite the two successive wars.
A long time ago, the forest was occupied frequently, wood was used for construction, firewood and for making furniture, but it also served for animals feed. In addition, people came also regularly to garvest fruits and berries.
There are two main types of trees in northern France: conifers and broad-leaved,and several species: ash,beech, cherry, sycamore and poplar whose Picardy is the first producing region.