• 170 k ( 106 mi.) 13,000 meters (8 mi.) of elevation gain and 13,000 meters (8 mi.) of elevation loss.
• Departure from Ordino town centre on Friday on the morning and finish in Ordino town centre
• 15 peaks or passes upon 2,400 meters
• Average altitude: 1,985 meters
• The most spectacular feature: panoramic views, alternate zones of minerals, high mountain meadows, forests, glacial lakes...
• The most technical section: some completely safe rocky ridge sections
• Sticks allowed
• 13 aid stations

Technical difficulty⁽*⁾:

	A	Tarmac road or well-signposted track, virtually rock- and root-free terrain	Trouble-free running. Easy to eat or hydrate without affecting pace
	B	Well-signposted track, slightly irregular terrain with some stones or roots	Relatively trouble-free running, although requires some attention
	C	Irregular, slippery and/or narrow track with a lot of stones and/or roots	Running requires concentration
	D	Very irregular, slippery and/or narrow track with a lot of stones and/or roots	Running requires great concentration
	E	Very difficult, slippery and irregular terrain (scree or rocks)	Requires total concentration. Ankles and quadriceps must be in very good shape

⁽*⁾ This criterion is completely independent of height difference. It is intented as a classification of the nature of the terrain.

Time limits:

• Saturday at 8 am (25-hours race): Margineda
• Sunday at 2 am (43-hours race): Refugi de l'Illa
• Sunday at 8 am (49-hours race): Pas de la Casa
• Sunday at 12 am (53-hours race): Inclès

Referencess:

• previously registration in the Ronda dels Cims or
• with proof of having finished, in the last 2 years, a non stop race of
  
  • over 100 km with more than 4,500 m elevation gain, or
  • over 165 km with more than 2,500 m elevation gain

Registrations from November onwards.