The mountains and hills are bounded northwards by the
Fortore valley, eastwards by the
Tavoliere delle Puglie, southwards by the upper
Ofanto valley. The chain is formed by
sandstone terrains, and is the source of a series of small streams which flow through the Tavoliere into the
Adriatic Sea. The highest peak is
Monte Cornacchia, at . Historically, the Daunian Mountains have suffered a substantial depopulation in the last decades, due to their relative isolation. They include 21
comuni, all in the
province of Foggia, which form two mountain communities (
Comunità Montana dei Monti Dauni Settentrionali , with seat at
Casalnuovo Monterotaro, and the
Comunità Montana dei Monti Dauni Meridionali, at
Bovino). ==Highest peaks==