19 trails
| Name | Distance | Ascent | Descent | OpenStreetMap Relation |
|---|---|---|---|---|
| Por la Mesa de Oña | 9.1 mi | 2,316 ft | 2,287 ft |  3582541 |
| San Zadornil | 8.5 mi | 1,553 ft | 1,570 ft | 3558214 |
| [CIMA BU07] Portillo del Busto | 7.7 mi | 1,435 ft | 0 ft | 10976001 |
| Barcina de los Montes | 7.6 mi | 1,471 ft | 1,449 ft | 3560786 |
| Cillaperlata | 7.3 mi | 1,966 ft | 1,955 ft | 3562120 |
| Ranera | 7.1 mi | 926 ft | 932 ft | 3558144 |
| Arroyo de San Zadornil | 6.7 mi | 846 ft | 1,419 ft | 3558980 |
| Portillo del Busto | 6.6 mi | 1,759 ft | 1,909 ft | 3556235 |
| Valpuesta | 5.7 mi | 1,734 ft | 1,722 ft | 3565683 |
| Sendero del Mancubo | 5.7 mi | 1,610 ft | 1,616 ft | 3562475 |
| Bozoo | 5.5 mi | 973 ft | 984 ft | 3562565 |
| Penches | 4.7 mi | 850 ft | 817 ft | 3567291 |
| Encio | 4.2 mi | 649 ft | 562 ft | 3562147 |
| San Millán de San Zadornil | 4.1 mi | 1,143 ft | 1,140 ft | 3565674 |
| Villafría de San Zadornil | 2.7 mi | 558 ft | 557 ft | 3567398 |
| Cubilla y hayedos del Humión | 2.0 mi | 323 ft | 473 ft | 3565664 |
| Pancorbo | -0.0 mi | 1,383 ft | 1,868 ft | 3554334 |
| Villanueva de los Montes | -0.0 mi | 2,549 ft | 2,140 ft | 3561675 |
| Caminos de Oña | -0.0 mi | 1,948 ft | 3,259 ft | 3559043 |