Thier de Coo

This 47km cycling loop takes you from Trois-Ponts through the spectacular landscapes of the Amblève and Hoëgne valleys. The route, punctuated by wooded sections and challenging climbs, showcases several iconic sites of the High Fens, including the Col du Rosier and the Belvédère de la Hoëgne viewpoint. The Thier de Coo , a short but steep ascent, opens this demanding circuit.

After reaching Francorchamps via a slightly uphill road, you continue towards Baronheid , before entering the communal forest of La Hoëgne . This shaded and peaceful wooded section leads you to the Belvédère de la Hoëgne , a natural viewpoint overlooking the High Fens.

You then cross the Bois de Belle Heid and the Arboretum de Tahanfagne , before tackling the ascent of the Col du Rosier , one of the most renowned passes in the region, long and steady, often used by cycling enthusiasts.

The end of the route descends towards Andrimont , Ruy , then returns towards Trois-Ponts along the Amblève , via hilly but rolling lines.

• Length: 2.6 km
• Elevation gain: 212 m
• Steepest section: 16.6%
• Average slope: 8.3%

• Thier de Coo , steep climb right from the start
• Coo's Indoor Pools
• Stavelot , a historic city
• Hoëgne viewpoint , view over the valley
• Col du Rosier , an iconic climb in the Ardennes
• Belle Heid Woods and Tahanfagne Arboretum
• The Amblève , a winding and photogenic river
• Francorchamps , famous for its F1 circuit

The Thier de Coo is often overlooked by passing cyclists, overshadowed by the major nearby mountain passes. Yet, its short but steep climb makes it a true test of fitness from the very first kilometers of this route.