Guidebook
Lonely Planet Italy
Lonely Planet · 2025
Current Lonely Planet Italy, with Umbria coverage incl. Terni and the Cascata delle Marmore, whose flow is released on a set timetable.
Italy · Challand-Saint-Victor
The Isollaz Falls is a waterfall along the Évançon river near Challand-Saint-Victor in the Aosta Valley, Italy. It has a drop of about 50 meters, making it one of the highest in the region.
Facts from Wikidata and Wikipedia, compiled September 2026; season and access are our estimate, not a visit report. How we build these pages.
Isollaz Falls drops 50 metres (164 ft). It is a cascade-type fall, and the nearest base for a visit is Challand-Saint-Victor, Italy. Access to the main viewpoint is rated moderate.
Summary adapted from the Wikipedia article (CC BY-SA 4.0).
As a cascade waterfall, water tumbles down a series of rock steps rather than falling free.
No commercial adventures run at Isollaz Falls itself — the experience is the approach and the view. Guided day trips from Challand-Saint-Victor are the easiest way to combine it with the area around it.
Also good forHikingPhotography
Winter rain and spring snowmelt: March to June is the season, and late summer can leave the smaller falls dry.
Largest curtain
Victoria Falls
Zimbabwe · Zambia
Height108 mWidth1,708 m
Largest single sheet of falling water
Tallest on earth
Angel Falls
Venezuela
Height979 mWidth—
Widest on earth
Khone Phapheng Falls
Laos
Height21 mWidth10,783 m
Measured across the whole multi-channel system
Angel Falls is 20× taller than Isollaz Falls. Victoria Falls is 2.2× taller. We don't have a reliable crest width for Isollaz Falls yet, so it is left off the width chart. Tallest · widest lists.
Guidebook
Lonely Planet · 2025
Current Lonely Planet Italy, with Umbria coverage incl. Terni and the Cascata delle Marmore, whose flow is released on a set timetable.
45.68463, 7.71129
Isollaz Falls is in Italy (Challand-Saint-Victor). The nearest base is Challand-Saint-Victor, Italy. Its coordinates are 45.6846, 7.7113.
Isollaz Falls drops 50 metres (164 feet). It is a cascade-type waterfall.
Peak flow is March to June. Winter rain and spring snowmelt: March to June is the season, and late summer can leave the smaller falls dry.
Beyond the viewpoints: hiking and photography. Access to the main viewpoint is rated moderate — a real walk — expect stairs, uneven ground or an hour on the trail.
The usual base is Challand-Saint-Victor, Italy. A real walk — expect stairs, uneven ground or an hour on the trail from there.
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