4.5
(26)
157
riders
11
rides
Gravel biking around Parco Regionale Valle del Treja offers varied terrain shaped by its volcanic origins, featuring slopes, hills, and deep gorges carved by the Treja River. The landscape transitions from cultivated areas to dense forests and river valleys, providing a mix of challenging ascents and scenic routes. Ancient dirt paths and diverse surfaces characterize the no traffic gravel bike trails in this region. The park's unique geology creates a dynamic environment for gravel biking.
Last updated: October 3, 2026
4.0
(8)
67
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5
riders
50.5km
03:54
740m
740m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.

4.2
(5)
30
riders
52.4km
03:48
660m
660m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
12
riders
63.0km
04:06
650m
650m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.
4.5
(6)
26
riders
46.7km
03:11
640m
640m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Parco Regionale Valle del Treja
A place to visit
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Nice dirt path to ride
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A place worth a visit
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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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Coming from "Strada per Monterosi" you have to do a fairly technical singletrack descent
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The beautiful Sutri
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There are 11 dedicated no-traffic gravel bike trails in Parco Regionale Valle del Treja featured in this guide. These routes offer a mix of moderate and difficult terrain, perfect for exploring the region's unique volcanic landscape.
The trails in Parco Regionale Valle del Treja feature varied terrain due to its volcanic origins. You'll encounter ancient dirt paths, slopes, hills, and deep gorges carved by the Treja River. Expect a mix of challenging ascents and scenic routes through dense forests and river valleys.
Yes, several routes pass by significant natural and historical landmarks. You can visit the beautiful Monte Gelato Waterfalls, a popular site with an ancient water mill. The historic villages of Calcata Vecchia and Historic centre of Mazzano Romano are also highlights, offering picturesque views and a glimpse into the region's past.
The Parco Regionale Valle del Treja is enjoyable for gravel biking throughout much of the year. Spring and autumn offer pleasant temperatures and vibrant scenery. Summer can be warm, but the dense forests and river valleys provide welcome shade. Winter rides are possible, but be mindful of potentially muddy conditions on some dirt paths after rain.
Yes, many of the gravel bike trails in Parco Regionale Valle del Treja are designed as loops. For example, the Ascent to Campagnano di Roma – Monte Gelato Waterfalls loop from Treja offers a moderate 22.3 km ride, while the more challenging Monte Gelato Waterfalls – Hazelnut Trail loop from Monterosi covers 60.7 km.
The komoot community highly rates the gravel biking experience here, with an average score of 4.6 out of 5 stars. Reviewers often praise the tranquility of the no-traffic routes, the stunning volcanic landscapes, and the opportunity to discover historical sites like the Etruscan Necropolis and charming medieval villages.
While many routes in this guide are moderate to difficult, the region offers simpler paths, especially around attractions like the Monte Gelato Waterfalls, which are suitable for relaxing walks. For gravel biking with families, consider routes with less elevation gain and shorter distances, or explore specific sections of longer trails that are known to be less technical.
Many outdoor areas in Italy, including regional parks, generally allow dogs on trails, often requiring them to be on a leash. Given the presence of wildlife like wild boar, keeping dogs leashed is advisable. Always check local park regulations for any specific restrictions before you go.
Parking is typically available in or near the starting points of many routes, such as the towns of Monterosi, Campagnano di Roma, or near popular attractions like the Monte Gelato Waterfalls. It's advisable to check specific route descriptions for recommended parking locations.
Yes, the Lake Monterosi – Sutri Etruscan Necropolis loop from Monterosi is a challenging 52.4 km route that provides views of Lake Monterosi and leads to the historical Sutri Etruscan Necropolis, offering a blend of natural beauty and cultural exploration.
The longest difficult route featured is the Monte Gelato Waterfalls – Hazelnut Trail loop from Monterosi, spanning 60.7 km with over 760 meters of elevation gain. This trail explores the Treja Valley and passes the iconic Monte Gelato Waterfalls.


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