Forest of Tronçais, National forest in Allier, France
The Forest of Tronçais is a large protected woodland in the Allier region with centuries-old oak trees and diverse wildlife including deer, wild boars, and numerous bird species. The area spans across several municipalities and features different forest zones with varied woodland types.
In the 17th century, Minister Jean-Baptiste Colbert commissioned the systematic development of the forest to supply timber for the French Navy. This management approach from that era continues to shape woodland management today.
The name Tronçais comes from tronce, an old French word for the sessile oak that makes up 73% of the forest. Around a hundred springs rise here, and about eighty are enclosed in masonry and called fonts, such as the Font Bégault at the source of the Planchettes stream and the Font de la Goutte d'Argent.
The area has multiple walking trails for different fitness levels and is accessible on foot or by bicycle. The best time to visit is spring and autumn, when the weather is mild and the paths are easy to navigate.
The forest is not a remnant of primeval woodland: Colbert had it planted from 1670, interplanting oaks with beeches and larches so the oaks would grow straight, tall and knot-free for ship's masts. By the time the timber matured, the navy was switching from sail to steam. Named oaks survive, such as the Chêne carré (6.44 m girth, parcel 215) and the Chênes jumeaux (parcel 137).
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