4.7
(27)
168
riders
21
rides
Gravel biking around Parco Regionale Valle del Treja features routes traversing a landscape shaped by the Treja River, characterized by its deep valleys, volcanic tufaceous rock formations, and dense woodlands. The area includes historical sites and natural attractions like the Monte Gelato Waterfalls, offering varied terrain for gravel cyclists. Expect a mix of unpaved roads, forest paths, and some paved sections connecting villages and points of interest. The elevation changes indicate rolling hills rather than high mountains, suitable for diverse…
Last updated: July 5, 2026
4.0
(8)
71
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5
riders
50.6km
03:53
740m
740m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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5.0
(2)
4
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.5
(4)
11
riders
186km
11:28
1,400m
1,400m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.3
(4)
28
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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For those arriving at Calcata Vecchia and wanting to descend into the Treja Valley, I strongly advise against taking the marked path that is not on the road: it is a pedestrian descent that can only be done with a bike in hand, and not even easily. Descend following the main asphalt road.
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Small medieval part of town that has only dead-end streets.
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The Porta Romana in Campagnano di Roma is one of the historic entrances to the medieval village and a symbol of its identity. Impressive and well-preserved, it welcomes visitors with its stone structure that immediately evokes the atmosphere of the past. Crossing it means entering a town rich in history, with charming alleys and characteristic views. Today, it is also a landmark for pilgrims and travelers along the Via Francigena, who find here one of the most fascinating stops on the route to Rome.
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As of this weekend 10 aug the fountain has a sign stating that the water is not potable
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Campagnano di Roma is located about 30 kilometres (19 miles) northwest of Rome.
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The beautiful Sutri
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Wonderful path through nature, lined with hazelnut plantations.
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Hazelnut bushes as far as the eye can see.
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The trails in Parco Regionale Valle del Treja offer a range of difficulties. You'll find a good mix, with about 7 moderate routes and 11 more challenging options, catering to both experienced riders and those looking for a solid workout.
While many routes are moderate to difficult, some of the shorter, less strenuous sections, particularly those around the Monte Gelato Waterfalls, can be suitable for families with older children or those comfortable with varied terrain. Always check the specific route details for elevation and surface conditions before heading out.
Gravel bike trails in Valle del Treja vary significantly in length. You can find shorter loops, such as the Ascent to Campagnano di Roma – Monte Gelato Waterfalls and Mill loop from Treja at 22.4 km, which takes under two hours. Longer, more challenging routes like the Monte Gelato Waterfalls – Hazelnut Trail loop from Monterosi can extend over 60 km and take more than four hours to complete.
Yes, many of the gravel bike routes in the park are designed as loops, allowing you to start and finish at the same point. Examples include the Monte Gelato Waterfalls – Calcata Vecchia loop from Campagnano di Roma and the Ascent to Campagnano di Roma – The Path of Light loop from Campagnano di Roma.
The trails often lead through a landscape rich in natural beauty and history. You can encounter the stunning Monte Gelato Waterfalls, explore the charming Calcata Vecchia, or visit the Historic centre of Mazzano Romano. Some routes also pass by the unique Tibetan bridge over the Treja River.
Spring and autumn are generally the most pleasant seasons for gravel biking in Valle del Treja. The weather is milder, and the natural scenery, from blooming wildflowers to vibrant fall foliage, is at its most beautiful. Summers can be hot, while winters might bring rain, affecting trail conditions.
Given the volcanic tufaceous rock formations and dense woodlands, some unpaved sections and forest paths can become muddy and slippery after heavy rain. It's advisable to check local weather forecasts and recent trail reports before heading out, especially if you plan to tackle more challenging routes.
Many routes pass through or near small villages like Calcata Vecchia, Mazzano Romano, or Campagnano di Roma, where you can often find local cafes, trattorias, or small shops to refuel. It's always a good idea to carry sufficient water and snacks, especially on longer or more remote sections.
The dense woodlands and river valleys of Parco Regionale Valle del Treja provide a habitat for various wildlife. Keep an eye out for birds of prey, small mammals, and local fauna, especially during quieter times of the day or on less frequented paths. Respecting the natural environment helps ensure these encounters continue.
The komoot community rates the area highly, with an average score of 4.6 stars from over 20 reviews. Riders often praise the diverse terrain, the blend of natural beauty with historical sites, and the scenic river valley views. The mix of unpaved roads and forest paths offers an engaging experience for many.
Yes, the park offers several challenging routes for advanced gravel bikers. For instance, the Lake Monterosi – Sutri Etruscan Necropolis loop from Monterosi is a difficult 52.3 km route with significant elevation changes, providing a demanding ride through varied landscapes.
Routes passing through or near Mazzano Romano often offer scenic overlooks of the Treja River valley and the surrounding volcanic landscape. The Historic centre of Mazzano Romano itself provides elevated perspectives, and trails in its vicinity will likely feature picturesque spots.


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