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GR20 Stage 12 – Prati to Usciolu

By François · updated in June 202506/2025My rating

Key facts about the hike

Difficulty
Moderate Hikes are rated from very easy to very hard: my difficulty scale
Duration
5h Estimated time, short breaks included (photos, water, snacks), picnic not included: how it is calculated
Distance
10.8km
Elevation gain
830m
Elevation loss
900 m
Type of route
One way
Maximum altitude
1,992 m
Vertiginous Five levels, depending on how exposed the route is: the levels in detail
Slightly
Marked
Yes
Popularity
High
Region
South-East
Start point
42.00844, 9.21791
Activity
Trek - GR20

Hike overview

The twelfth stage of the GR20 north-south trail connects the Prati (1,820 m) and Usciolu (1,750 m) refuges over 10.5 kilometers. It marks a return to a more mountainous route after the relatively fast-paced stages of the GR20 South. The hike takes place primarily along a ridge line, offering spectacular views of the Mediterranean Sea to the east and the Taravo Valley and its mountain villages to the west.

With its moderate elevation gain, this stage is one of the least demanding of the trek. Though the route is exposed, it is less technical than the GR20 North route.

Map and elevation profile of the hike

GR20 Stage 12 – Prati to Usciolu

Description and difficulties of the hike

This stage is characterized by a hilly profile that alternates between ascents and descents on rocky terrain. The route begins with a steady climb of about an hour to Punta della Cappella (2,041 m), the highest point of the day. A short, slightly exposed section below the summit, equipped with metal rungs, requires extra caution.

The trail then continues along the ridge for about two hours, winding between the western and eastern slopes. The terrain alternates between rolling sections and more technical, rocky passages, including a passage through scree after Punta di Campitellu. Sloping slabs become particularly slippery in wet weather.

After descending to Bocca di Laparo (1,521 m), another 400-meter climb leads to Monte Formicula (1,981 m). The stage concludes with an easy, long descent to the Usciolu refuge.

What you'll love

  • The magnificent panoramas from the ridges, with a bird's eye view of the Mediterranean Sea and the eastern plain on one side, and the upper Taravo valley with the villages of Palneca, Ciamannacce, and Cozzano on the other.
  • The alpine atmosphere of the ridge crossing, reminiscent of the most spectacular stages of the GR20 North.

Practical information

Doubling up stages

This stage is particularly well suited to doubling up, as it is one of the trek's least demanding stages. It is preferable to combine stages 12 and 13 rather than stages 11 and 12, as stage 11 already exceeds 17 kilometers.

Mediterranean Sea from the Prati Refuge
Mediterranean Sea from the Prati Refuge
GR20 - Etape 12
GR20 - Stage 12
Ridge path
Ridge path
Magnificent open views from the ridges
Magnificent open views from the ridges
GR20 - Etape 12
GR20 - Stage 12
GR20 - Etape 12
GR20 - Stage 12
GR20 - Etape 12
GR20 - Stage 12
Bocca di Laparo
Bocca di Laparo
Arrival at Usciolu refuge
Arrival at Usciolu refuge

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Printed from www.horizonrando.fr/en/corsica/gr20-stage-12-from-prati-to-usciolu/