The total area of the Fanes-Sennes-Prags Nature Park is 254 km².
The surface area of the municipality of Olang is 49 km² and with an area of 16 km² a whole third of the Olang municipal territory is located in the Fanes-Sennes-Prags Nature Park, which means that 33% of the entire municipal territory is under the protection of the Dolomites UNESCO World Heritage.
