The first written testimony in which Bosco d’Alpago is mentioned (as it was then called the Cansiglio forest) is a Diploma of the 923 century of Berengario I, crowned King of Italy with the aid of the ecclesiastical authority, by which the sovereign had donated the forest to the fief of the Bishop Count of Belluno.
In the following centuries numerous were the concessions of law of pasture to institutions and privates, but the pressure of human activities on the forest grew when, in the municipal age, the Cansiglio became the property of the Community of Belluno.
The fate of the forest will improve only starting from the first years of the XV century, when also the Bellunese territory asked for protection to the Republic of Venice.
The Cansiglio has assumed an enormous economic importance for the Venetian State: its forest rich of beech wood was used primarily in the production of the oars, timber from work and coal.
The governments of France and Austria followed, alternating with the Serenissima, but carried out a non attentive management, offering opportunities for revenge on forestry heritage to the contiguous populations until, after the birth of the Kingdom of Italy in 1871, the Italian Government declared the Cansiglio an Inalienable State Forest.
The recent history of the plateau is marked by the tragic happenings related to the second world war: in Cansiglio settled the headquarters of volunteers coming from adjacent areas that, with varying fortunes, joined the partisan struggle.