Where Are the Dolomites: Provinces, Borders and the Nine Systems

Where they are, in a few lines

North-eastern Italy, between South Tyrol, Trentino, the province of Belluno and the western tip of Friuli. The World Heritage property crosses five provinces: Belluno, Bolzano, Pordenone, Trento and Udine. The regions are three: Veneto, Trentino-Alto Adige and Friuli Venezia Giulia.

If you want a perimeter, Visit Trentino draws it like this: to the north the course of the river Rienza and the Puster Valley, to the south the Val Cismon and the Val di Fiemme, to the west the Adige valley, to the east the Piave and the Cadore. Inside that irregular rectangle there is no single mountain: there is a mosaic of massifs, plateaus, valleys and passes.

One exception is worth saying straight away, because it confuses many people: the Brenta Dolomites lie west of the Adige, in Trentino, and they are Dolomites in full. They are the ninth system of the World Heritage Site, and we have written about them in the guide to the Brenta Dolomites.

The nine systems, one by one

The property inscribed on 26 June 2009 covers 142,000 hectares of core area and is made up of nine non-contiguous systems, understood as a single whole. The areas and provinces below are those of the Foundation's nine fact sheets, read on 7 October 2026:

The largest are the Northern Dolomites; the smallest is the Bletterbach, which is a gorge and not a group of peaks. The nine systems, and what each one contains, are on our page about the Dolomites UNESCO World Heritage Site.

• Pelmo and Croda da Lago: 4,344 hectares, all in the province of Belluno
• Marmolada: 2,208 hectares, between Belluno and Trento
• Pale di San Martino, San Lucano, Dolomiti Bellunesi and Vette Feltrine: 31,666 hectares between Belluno and Trento, the second largest
• Dolomiti Friulane and d'Oltre Piave: 21,461 hectares between Pordenone and Udine, with a small part in the province of Belluno
• Northern Dolomites: 53,586 hectares between Belluno and Bolzano, the largest of the nine
• Puez-Odle: 7,930 hectares, all in the province of Bolzano
• Sciliar-Catinaccio and Latemar: 9,302 hectares between Trento and Bolzano
• Bletterbach: 271 hectares in the province of Bolzano, the smallest
• Brenta Dolomites: 11,135 hectares, all in Trentino

Which valleys are inside, and between which cities

The valleys people associate with the Dolomites are the ones at the foot of the systems. On the South Tyrolean side: Val Gardena and Alta Badia around Puez-Odle and the Sella, Val di Funes below the Odle, the Alpe di Siusi below the Sciliar, the Puster Valley and the Val di Sesto to the north. On the Trentino side: Val di Fassa between Catinaccio, Sella and Marmolada, Val di Fiemme below the Latemar, Primiero below the Pale di San Martino. On the Veneto side: Cortina d'Ampezzo with the Tofane and the Cristallo, the Cadore, the Agordino, the Val di Zoldo below Pelmo and Civetta.

The real cities are all outside, on the edge. Bolzano and Trento lie to the west, in the Adige valley; Belluno to the south; Bressanone and Brunico to the north. Venice, Verona and Innsbruck are the more distant gateways.

For a sense of scale: the Cortina tourist board gives 162 kilometres from Venice airport, 130 from Treviso, 170 from Innsbruck and 260 from Verona. The Val di Fassa tourist board gives 40 kilometres from Bolzano airport, 175 from Venice and 320 from Munich. These are road distances, not straight-line ones, and they say one thing: the Dolomites are a few hours from half of Europe, but once inside the valleys distances stretch.

They are Alps, but they do not look like Alps: dolomite rock

Yes, the Dolomites are part of the Alps: they belong to the Italian Eastern Alps. What sets them apart is not their position but their rock.

It is called dolomite, a double carbonate of calcium and magnesium. It was studied at the end of the 18th century by the French naturalist Déodat de Dolomieu, and both the mineral and the mountains took their name from him. That is why these peaks are named after a person, which is rare in geography.

Dolomite behaves differently from the granite and schist of the western Alps. It breaks along vertical planes and holds up very high walls without crumbling: hence the ramparts that rise abruptly out of the pastures, the towers, the spires, the pinnacles. The UNESCO Foundation notes that some walls exceed 1,500 metres of vertical development and are among the highest limestone cliffs anywhere in the world.

And it is pale. The light colour of the rock is what earned the Dolomites the nickname Monti Pallidi, the Pale Mountains, and what makes them a screen for the evening light.

They used to be a tropical sea

The second reason UNESCO recognised them, after the beauty of the landscape, is geological. Roughly 250 million years of the Earth's history can be read in these layers, and read in order.

What now stands at three thousand metres was once the floor and the rim of shallow seas: shells, corals and algae piling up and cementing together. The Foundation calls them fossilised atolls, that is, carbonate platforms preserved together with the relationship between the reef and the basin around it. Then the movement of the plates lifted everything, and glaciers, water and wind carved the shapes you see.

One detail makes these rocks important far beyond tourism: they preserve the evidence of how marine life rebuilt itself in the Triassic, right after the greatest extinction event recorded in the history of life on Earth. That is why the Dolomites are an international reference for Triassic stratigraphy.

The rules for walking inside the parks that protect these rocks, fossils and minerals included, are in our guide to the nature parks.

The enrosadira: why they turn red

At dawn and above all at sunset, dolomite changes colour. The South Tyrol tourist board describes it like this: the peaks, pinnacles and rock faces of the massifs change colour for a short time and glow like embers, from orange-pink to fiery red to violet, until the sun goes down.

The name is Ladin: enrosadira, which means "turning pink". It belongs to the language spoken in Val Gardena, Val Badia and Val di Fassa, and it has no equivalent in Italian.

It lasts a few minutes and depends on where you are and where the sun is. When it is worth standing in front of a rock face, and which slopes light up first, is in our guide to sunrise and sunset.

How high they are: the Marmolada

The highest peak is Punta Penia, on the Marmolada: 3,343 metres. The Foundation's fact sheet for system 2 calls it the highest mountain in the Dolomites World Heritage Site, and the system as a whole is nicknamed the Queen of the Dolomites. On its northern side lies the largest glacier in the Dolomites.

Second comes the Antelao, 3,264 metres, in the Cadore Dolomites, within the Northern Dolomites system. After that it drops: a good number of peaks sit between 3,100 and 3,250 metres, from the Tofane to the Cristallo, the Civetta and the Sassolungo.

Compared with the western Alps these are lower mountains. Mont Blanc and Monte Rosa rise above four thousand metres. What changes the impression is the step: here the walls start from valleys at 1,000 to 1,500 metres and rise straight up, with nothing in between. The page on the Marmolada describes the group up close.

How to pronounce "Dolomites"

This question comes mostly from abroad, and the answer changes from language to language.

In Italian the name is Dolomiti, stressed on the i: do-lo-MEE-tee. In German, the home language across half the Puster Valley and in Val Gardena, they are the Dolomiten: do-lo-MEE-ten. In Ladin they are Dolomites. In English the name is Dolomites and the stress moves to the front: DOL-uh-mites.

The rock, in Italian, is dolomia, stressed on the final i: do-lo-MEE-a. In English rock and mineral are both called dolomite, the same word as the mountains, which explains why people searching in English for "dolomites rocks" sometimes mean the peaks and sometimes the stone.