Plizio Visual Lab

Upper Ausa River

Plizio editorial teamUpdated: Jun 2026Data Sources

River

Weather…

The Upper Ausa River originates on the northern slopes of Monte Titano and flows through the most densely populated northeastern sector of San Marino. This watercourse has played a fundamental role in the development of the Serravalle and Dogana districts, historically providing water for both agricultural irrigation and early industrial processes. The river valley is characterized by Quaternary alluvial deposits and clayey soils that support a specific riparian ecosystem of alders and willows. While urban expansion has led to the canalization or underground rerouting of several sections, the upper reaches still preserve important ecological niches for migratory birds and amphibians. The Ausa eventually flows across the border into Italy, emptying into the Adriatic Sea near Rimini. Current environmental initiatives focus on preserving the water quality and restoring natural banks to maintain the river's function as a green infrastructure within the urban landscape.

Location: San Marino
Top sights: Santuario della Beata Vergine della Consolazione · Cava dei Balestrieri · National Gallery of Modern and Contemporary Art
Nearby: Cà Giangi (4 km)

Best time to visit & climate

The most pleasant time to visit is Jun, Jul, Sep.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg °C	6	6	9	13	17	22	25	25	20	16	11	7
Rain mm	55	71	69	63	69	46	38	47	79	79	88	68

📋 Practical info

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Getting there

The upper reaches of this stream are typically accessible via entirely unpaved paths located near the central mountain ridges, serving as a starting point for riverside exploration.

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Best season

The spring months are generally considered the absolute best time for exploration, as the melting snow noticeably swells the stream and the area's hydrology is highly visible.

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Terrain & paths

The natural terrain near the mountain ridges is quite frequently rocky and slightly sloping, meaning the paths along the stream essentially demand a good degree of surefootedness.

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What to bring

For any meaningful hike along the upper stream, robust, ankle-supporting hiking boots are strongly recommended, along with appropriate clothing for the cooler ridge conditions.

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Parking

Suitable parking spaces are typically located in the lower-lying central settlements, from which visitors generally tackle the upward ascent to the mountain ridges on foot.

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Safety

Due to the considerably uneven terrain, visitors should always watch out for loose rocks near the stream and keep a remarkably safe distance from the edge during strong spring currents.

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Time needed

A typical exploratory tour following this essential watercourse usually takes roughly two to three hours, which naturally provides adequate time for both the ascent and observation.

Geography

Coordinates

43.94120, 12.44550

Facts

The Ausa starts its course from the slopes of Monte Titano.
It flows through the most industrialized part of the republic.
The river spans approximately 17 km from source to the Adriatic Sea.
Urban planning has integrated several green parks along its banks.
The Ausa valley soil is rich in clay and alluvial sediments.
It is a transboundary watercourse shared between San Marino and Italy.

Explore nearby

Notable places around

Ex-Railway Tunnels<1 km · SEExplore →

Valdragone Church1 km · NExplore →

Poggiale2 km · SEExplore →

Poggio di Acquaviva2 km · WExplore →

Church of San Michele Arcangelo2 km · NEExplore →

Historic Olive Grove2 km · SExplore →

Chiesanuova Hill3 km · SWExplore →

Poggio di Faetano3 km · EExplore →

Route planner — Car & Motorhome

Where do you start? We build the route here, with stops and country notes along the way.

Start Destination Via (optional)

Overnight stops

Vehicle

Only stops with (optional): 💧 Water ♻️ Disposal 🔌 Power 🚻 Toilets 🚿 Shower

Sights in the town Upper Ausa River (10)

Santuario della Beata Vergine della Consolazione

Church in Borgo Maggiore, a pilgrimage site with a 16th-century statue of Mary.

Cava dei Balestrieri

Former quarry, now used for crossbow demonstrations and historical reenactments in San Marino.

National Gallery of Modern and Contemporary Art🏛 museum

Art museum featuring 19th and 20th century paintings and sculptures.

Basilica di San Marino

Neoclassical church dedicated to Saint Marinus, housing relics of the city's patron saint.

Palazzo Pubblico

City hall and parliament seat of San Marino, built in neo-Gothic style on Piazza della Libertà.

Museo Armi Moderne🏛 museum

Museum of modern weapons, displaying firearms and military equipment from the 19th and 20th centuries.

Octila Heyroth Wagener

Monument honoring Octila Heyroth Wagener, a philanthropist in San Marino.

Statua della Libertà

Marble statue on Piazza della Libertà, symbol of the independence of the Republic of San Marino.

The city museum of San Marino🏛 museum

City museum with archaeological finds, art, and historical documents from San Marino.

Chiesa di San Francesco

Church in San Marino, built in the 14th century, with an adjoining monastery.

Sights nearby

Frequently asked questions

Where does the Ausa river originate?

The springs are located at the foot of Mount Titano in San Marino.

Is the upper course of the river scenic?

Yes, the upper Ausa course leads through untouched nature and small cascades.

Can you jog along the river?

In some sections, there are flat paths that are good for running.

How is the water quality?

In the upper course, the water is quite clean, but it deteriorates downstream due to settlements.

Is gold panning allowed in the river?

No, commercial or private extraction of river sediments is usually prohibited.

Upper Ausa River: where is it located?

Upper Ausa River is located in San Marino.

Upper Ausa River: what is there to see?

Highlights include Santuario della Beata Vergine della Consolazione, Cava dei Balestrieri, National Gallery of Modern and Contemporary Art.

Upper Ausa River: when is the best time to visit?