Puig Falcó, a brutally steep (20%) unpaved track in the Pyrenees

Puig Falcó is a high mountain peak at an elevation of 2.754m (9,035 ft) above the sea level, located in the heart of the Pyrenees, in the province of Lleida and autonomous community of Catalonia, Spain. It's one of the highest roads of Europe.

Cap de les Raspes Roies

Nestled in a setting of exceptional natural and cultural richness deep in the Vall de Boí of the Catalonian Pyrenees mountains, in the Boi-Taüll ski resort, the road to the summit, also known as Cap de les Raspes Roies, is an unpaved chairlift access trail with a few narrow and steep sections (up to 25%). The summit offers impressive views of Pallars Jussà and Pic of the Orri in the neighbouring ski resort of Port Ainé. 4x4 vehicles with high clearance only. It's one of the highest roads of the country.

Located within the Aigüestortes i Estany de Sant Maurici Natural Park, the road to the summit is brutally tough with roughly sections, on very rocky, slippery path / ski piste at occasionally impossible steepness. Accessibility is largely limited to the summer season. Starting at the parking lot of Boi-Taüll ski resort, the ascent is 3.5 km long. Over this distance the elevation gain is 699 meters. The average gradient is 19.97%.
Pic: http://sempremoltmeslluny.blogspot.com/2013/09/solitaria-solitaria-la-vall-de-manyanet.html