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Italy
Lazio
Viterbo

Riserva Naturale Regionale Valle Dell'Arcionello

Routes
MTB trails
Italy
Lazio
Viterbo

Riserva Naturale Regionale Valle Dell'Arcionello

The best MTB trails in Riserva Naturale Regionale Valle Dell'Arcionello

4.3

(383)

2,941

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193

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Riserva Naturale Regionale Valle Dell'Arcionello mountain bike trails navigate a diverse landscape characterized by a volcanic gorge carved by the Fosso Urcionio, featuring steep peperino walls. The region is dominated by Monte Palanzana, an 802-meter volcanic peak offering panoramic views. Dense forests of beech and oak trees cover the mountain slopes, while remnants of industrial archaeology, such as the Palanzana Aqueduct and old mills, add historical interest to the routes. This varied terrain provides a dynamic environment for mountain biking.

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Last updated: October 11, 2026

5

riders

#1.

Viterbo, Monti Cimini, and Lake Vico Loop

63.2km

06:03

1,440m

1,440m

Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.

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Hard

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate
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Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.

Hard

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate

Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

Moderate
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Popular around Riserva Naturale Regionale Valle Dell'Arcionello

Road Cycling Routes in Riserva Naturale Regionale Valle Dell'Arcionello

Cycling in Riserva Naturale Regionale Valle Dell'Arcionello

Running Trails in Riserva Naturale Regionale Valle Dell'Arcionello

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Gravel biking in Riserva Naturale Regionale Valle Dell'Arcionello

Tips from the Community

Silvio Venturini
April 12, 2026, Sentiero del Poggio di Mezzo

Entrance via the middle road of Lake Vico.

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Okay, the Parco Thermale di Bagnaccio is once again open daily. In winter from 8am to 8pm, in Summer open until 23pm or even midnight! Entry is 5€ for pilgrims with credential (or if you are lucky like me, also without). Else it is 10€. There are three simple changing rooms, some toilets, a snack automat and coffee maschine and, sometimes just outside, a mobile little restaurant selling hot meals.

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The Via Cassia was an ancient Roman consular road that connected Rome with Etruria. Built starting from the 3rd or 2nd century BC, it initially reached Clusium (Chiusi), then was extended to Cortona, Arezzo and Fiesole and, subsequently, towards the Tyrrhenian coast through Pistoia and Lucca from which several routes branched off up to Luni, where the Via Aemilia Scauri began. The Via Cassia started from Rome but did not begin, like all the consular roads, from the golden miliarium located in the Roman Forum. In fact, it originated from the Milvian Bridge, in the northern part of Rome, on the right bank of the Tiber which divided Rome from Etruria (the territory between the Arno and the Tiber ), marking the miles travelled in Etruria.

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The funerary monument of Pope Adrian V, in the Basilica of San Francesco in Viterbo, houses the remains of the pontiff, who died in 1276 after a very short pontificate. The work, traditionally attributed to Arnolfo di Cambio, reflects the Gothic style and Cosmatesque tradition of the era, with an elegant structure and finely decorated columns. The statue of the pope lies in pontifical robes on a richly carved base, lending the tomb a solemn and meditative tone. The monument testifies to the importance of Viterbo as a papal seat and artistic center in the 13th century.

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Beautiful cycle path on the Via Francigena towards Rome. The path continues across the Cassia under hazelnut groves.

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THE
August 5, 2025, View of Lake Bolsena

From here you have a beautiful view of the lake.

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beautiful view of the lake

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on the Via Francigena between Montefiascone and Viterbo

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Frequently Asked Questions

What kind of terrain can I expect on the mountain bike trails in Riserva Naturale Regionale Valle Dell'Arcionello?

The trails navigate a diverse landscape, characterized by a dramatic volcanic gorge carved by the Fosso Urcionio, featuring steep walls of peperino rock. You'll also encounter dense forests of beech and oak trees, and open panoramic crests, especially around Monte Palanzana. This combination provides a dynamic and engaging environment for mountain biking.

How challenging are the mountain bike trails in Riserva Naturale Regionale Valle Dell'Arcionello?

The reserve offers a range of trails suitable for various skill levels. Out of over 200 available routes, you'll find about 16 easy trails, 111 moderate trails, and 83 difficult trails. This variety ensures options from leisurely rides to more challenging ascents, such as those leading to Monte Palanzana.

What natural features and historical landmarks can I discover along the mountain bike routes?

Beyond the striking volcanic gorge and panoramic views from Monte Palanzana, you can explore intriguing industrial archaeology. Look out for the remains of the old Palanzana Aqueduct, ancient mills, and the ruins of the 'Segheria Anselmi' (Anselmi Sawmill). The 'Cittadella delle Acque' also follows the path of the old aqueduct, offering a glimpse into the area's past industrial use of water power.

Are there any mountain bike routes that offer views of Lake Bolsena?

Yes, several routes provide scenic views of Lake Bolsena. For example, the View of Lake Bolsena – Cassia Antica Stone Path loop from Viterbo is a moderate 41.5 km path that includes sections of the historic Cassia Antica. Another option is the View of Lake Bolsena – View of Lake Bolsena loop from Viterbo Porta Fiorentina, a 49.4 km trail with consistent lake views.

What is the best time of year to go mountain biking in Riserva Naturale Regionale Valle Dell'Arcionello?

The trails in Riserva Naturale Regionale Valle Dell'Arcionello are accessible year-round, offering different scenic beauty with each season. Spring and autumn generally provide pleasant temperatures and vibrant landscapes, while summer can be warm but still enjoyable, especially in the shaded forest sections. Winter riding is also possible, with the landscape taking on a different charm.

Are there any family-friendly mountain bike trails in the reserve?

While the region offers a mix of difficulties, the presence of around 16 easy trails suggests there are options suitable for families or those looking for a less strenuous ride. These easier paths often traverse the dense woodlands or follow less steep sections of the volcanic gorge, providing a pleasant experience for all.

Can I bring my dog on the mountain bike trails?

The Riserva Naturale Regionale Valle Dell'Arcionello is a natural area, and generally, dogs are permitted on trails, often requiring them to be on a leash to protect wildlife and ensure the safety of other visitors. It's always advisable to check local regulations or signage at trailheads for any specific rules regarding pets within the reserve.

Where can I park my car when visiting Riserva Naturale Regionale Valle Dell'Arcionello for mountain biking?

Parking facilities are typically available at key access points around the reserve, especially near Viterbo, which serves as a common starting point for many routes. Specific parking areas may vary depending on your chosen trailhead, so it's recommended to check the starting point of your planned route for the most convenient parking options.

Are there any mountain bike routes that include views of Lake Vico?

Yes, you can find routes that offer views of Lake Vico. The Viterbo, Monti Cimini, and Lake Vico Loop is a challenging 63.2 km trail that provides extensive views across the Monti Cimini and Lake Vico. Another option is the Panoramic view of Lake Vico – Poggio di Mezzo Trail loop from Viterbo Porta Fiorentina, a difficult 47.8 km route.

What do other mountain bikers enjoy most about riding in Riserva Naturale Regionale Valle Dell'Arcionello?

The area is highly rated by the komoot community, with an average score of 4.4 stars from over 350 reviews. Mountain bikers often praise the varied terrain, the unique volcanic gorge, the panoramic views from Monte Palanzana, and the historical elements found along the routes. The combination of natural beauty and engaging trails makes it a popular destination.

Are there any circular mountain bike routes available?

Yes, many of the mountain bike routes in Riserva Naturale Regionale Valle Dell'Arcionello are designed as loops, allowing you to start and finish at the same point. Examples include the Calvario Ascent Trail – The Summit loop from Viterbo Porta Romana, a moderate 34.1 km route, and the various Lake Bolsena and Lake Vico loops mentioned previously.

Most popular routes in Riserva Naturale Regionale Valle Dell'Arcionello

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