Circuito de senderismo de 64.06 km desde Espinosa de los Monteros. El desnivel positivo es de 5473 m, con una altitud entre 738 m y 1709 m. Duración estimada: 26 h 40 min. Municipio de salida: Espinosa de los Monteros (Castilla y León, Espagne).
Esta ruta incluye 12 subidas significativas. Con un desnivel acumulado de 2943 m a lo largo de 20.25 km, con una pendiente media del 14.5%.
- Climb 1 (at km 2.02 km): +305 m over 1.96 km, average slope 15.6%
- Climb 2 (at km 6.33 km): +135 m over 1.02 km, average slope 13.3%
- Climb 3 (at km 7.93 km): +128 m over 651 m, average slope 19.7%
- Climb 4 (at km 21.38 km): +607 m over 4.04 km, average slope 15.0%
- Climb 5 (at km 24.45 km): +35 m over 297 m, average slope 11.8%
- Climb 6 (at km 30.80 km): +338 m over 2.31 km, average slope 14.6%
- Climb 7 (at km 33.34 km): +170 m over 793 m, average slope 21.4%
- Climb 8 (at km 51.25 km): +345 m over 2.03 km, average slope 17.0%
- Climb 9 (at km 56.89 km): +187 m over 1.44 km, average slope 13.0%
- Climb 10 (at km 61.10 km): +225 m over 1.39 km, average slope 16.2%
- Climb 11 (at km 68.01 km): +323 m over 2.65 km, average slope 12.2%
- Climb 12 (at km 74.44 km): +145 m over 1.68 km, average slope 8.7%
