| Castañedo-Ayones | 12.75 km | 5% | 638 m | Cat. 2 |
| Carretera Irún - Santiago | 11.07 km | 5.1% | 564 m | Cat. 2 |
| Carretera de Otur a Villapedre | 15.42 km | 3.6% | 1,056 m | Cat. 2 |
| Luarca / Ḷḷuarca | 14.56 km | 3.6% | 521 m | Cat. 2 |
| Luarca / Ḷḷuarca | 9.98 km | 4.7% | 468 m | Cat. 2 |
| Carretera Irún - Santiago | 10.3 km | 4.2% | 917 m | Cat. 2 |
| Carretera de Brieves a Merás | 11.73 km | 3.5% | 887 m | Cat. 2 |
| Pontigón-Tineo | 4.62 km | 8.7% | 400 m | Cat. 2 |
| Carretera de Brieves a Merás | 12.31 km | 3.2% | 1,013 m | Cat. 2 |
| Carretera de San Martín de Luiña a Brieves | 11.92 km | 3.2% | 830 m | Cat. 2 |
| Carretera de San Martín de Luiña a Brieves | 10.7 km | 3.5% | 373 m | Cat. 2 |
| Luarca / Ḷḷuarca | 7.31 km | 4.9% | 359 m | Cat. 2 |
| Luarca / Ḷḷuarca | 7.38 km | 4.8% | 602 m | Cat. 2 |
| Carretera de Otur a Villapedre | 10.05 km | 3.4% | 337 m | Cat. 2 |
| Carretera de Otur a Villapedre | 9.77 km | 3.2% | 641 m | Cat. 3 |
| Castañedo-Ayones | 4.06 km | 7.4% | 299 m | Cat. 3 |
| Luarca / Ḷḷuarca | 6.44 km | 4.6% | 296 m | Cat. 3 |
| Carretera Irún - Santiago | 2.99 km | 9.8% | 294 m | Cat. 3 |
| Carretera Irún - Santiago | 6.06 km | 4.8% | 291 m | Cat. 3 |
| Catañedo-Socolinas | 3.37 km | 8.5% | 341 m | Cat. 3 |
| Luarca / Ḷḷuarca | 4.21 km | 5.8% | 382 m | Cat. 3 |
| Pontigón-Tineo | 2.14 km | 11.4% | 244 m | Cat. 3 |
| Luarca / Ḷḷuarca | 3.96 km | 5.7% | 226 m | Cat. 3 |
| Carretera de San Martín de Luiña a Brieves | 6.44 km | 3.5% | 224 m | Cat. 3 |
| Carretera de San Martín de Luiña a Brieves | 4.12 km | 5.4% | 220 m | Cat. 3 |
| Luarca / Ḷḷuarca | 3.38 km | 6.3% | 214 m | Cat. 3 |
| Carretera Luarca - Villayón | 2.47 km | 8.7% | 214 m | Cat. 3 |
| VA-4 | 3.5 km | 6% | 211 m | Cat. 3 |
| Carretera de Brieves a Merás | 8.37 km | 2.5% | 209 m | Cat. 3 |
| Carretera de San Martín de Luiña a Brieves | 2.94 km | 7.1% | 208 m | Cat. 3 |
| Carretera de San Martín de Luiña a Brieves | 3.86 km | 5.1% | 198 m | Cat. 3 |
| Carretera de San Martín de Luiña a Brieves | 7.69 km | 2.5% | 193 m | Cat. 3 |
| Catañedo-Socolinas | 1.74 km | 10.8% | 187 m | Cat. 3 |
| Carretera Irún - Santiago | 4.45 km | 4.2% | 192 m | Cat. 3 |
| Luarca / Ḷḷuarca | 3.6 km | 4.8% | 174 m | Cat. 3 |
| Luarca / Ḷḷuarca | 1.89 km | 9% | 194 m | Cat. 3 |
| Carretera de Otur a Villapedre | 2.96 km | 5.7% | 170 m | Cat. 3 |
| Carretera Irún - Santiago | 7.73 km | 2.2% | 169 m | Cat. 3 |
| Luarca / Ḷḷuarca | 2.9 km | 5.8% | 168 m | Cat. 3 |
| Luarca / Ḷḷuarca | 1.79 km | 8.6% | 154 m | Cat. 4 |
| Pontigón-Tineo | 1.76 km | 8.4% | 148 m | Cat. 4 |
| Luarca / Ḷḷuarca | 2.18 km | 6.8% | 147 m | Cat. 4 |
| Carretera Irún - Santiago | 11.89 km | 1.2% | 147 m | Cat. 4 |
| Luarca / Ḷḷuarca | 1.36 km | 10.3% | 140 m | Cat. 4 |
| Luarca / Ḷḷuarca | 3.24 km | 4.3% | 139 m | Cat. 4 |
| Carretera Irún - Santiago | 2.78 km | 4.7% | 130 m | Cat. 4 |
| Luarca / Ḷḷuarca | 1.23 km | 10.5% | 129 m | Cat. 4 |
| Carretera de Brieves a Merás | 2 km | 6% | 119 m | Cat. 4 |
| Carretera de Brieves a Merás | 3.89 km | 3% | 254 m | Cat. 4 |
| Carretera de San Martín de Luiña a Brieves | 2.49 km | 4.5% | 111 m | Cat. 4 |
| Carretera de San Martín de Luiña a Brieves | 1.83 km | 5.9% | 107 m | Cat. 4 |
| Luarca / Ḷḷuarca | 1.81 km | 5.8% | 106 m | Cat. 4 |
| Carretera de Otur a Villapedre | 1.5 km | 6.6% | 100 m | Cat. 4 |
| Carretera Luarca - Villayón | 1.59 km | 6.1% | 97 m | Cat. 4 |
| Carretera de San Martín de Luiña a Brieves | 1.38 km | 6.9% | 95 m | Cat. 4 |
| Luarca / Ḷḷuarca | 0.56 km | 16.8% | 93 m | Cat. 4 |
| Pontigón-Tineo | 1 km | 9.3% | 93 m | Cat. 4 |
| Carretera de San Martín de Luiña a Brieves | 1.73 km | 5.3% | 92 m | Cat. 4 |
| Luarca / Ḷḷuarca | 0.8 km | 11.2% | 89 m | Cat. 4 |
| Luarca / Ḷḷuarca | 0.55 km | 16% | 88 m | Cat. 4 |
| Carretera de San Martín de Luiña a Brieves | 2.07 km | 4.2% | 88 m | Cat. 4 |
| Luarca / Ḷḷuarca | 2.23 km | 3.8% | 121 m | Cat. 4 |
| Luarca / Ḷḷuarca | 1.51 km | 5.5% | 83 m | Cat. 4 |
| Carretera Irún - Santiago | 1.24 km | 6.7% | 83 m | Cat. 4 |
| Carretera Irún - Santiago | 4.88 km | 1.7% | 81 m | Cat. 4 |
| Luarca / Ḷḷuarca | 1.68 km | 4.8% | 80 m | Cat. 4 |
| Luarca / Ḷḷuarca | 1.72 km | 4.6% | 79 m | N/A |
| Carretera Irún - Santiago | 11.01 km | 0.7% | 353 m | N/A |
| Pontigón-Tineo | 0.88 km | 8.6% | 76 m | N/A |
| Luarca / Ḷḷuarca | 3.18 km | 2.4% | 75 m | N/A |
| Carretera Irún - Santiago | 1.49 km | 5% | 74 m | N/A |
| Luarca / Ḷḷuarca | 1.46 km | 5% | 74 m | N/A |
| Luarca / Ḷḷuarca | 1.78 km | 4.1% | 72 m | N/A |
| Luarca / Ḷḷuarca | 0.67 km | 10.2% | 68 m | N/A |
| Carretera de Brieves a Merás | 1.73 km | 3.6% | 63 m | N/A |
| Catañedo-Socolinas | 0.55 km | 11.1% | 61 m | N/A |
| Luarca / Ḷḷuarca | 2.16 km | 2.8% | 61 m | N/A |
| Carretera Irún - Santiago | 4.21 km | 1.4% | 59 m | N/A |
| Carretera Irún - Santiago | 0.93 km | 6.2% | 70 m | N/A |
| VA-3 | 1.11 km | 5.1% | 66 m | N/A |
| Castañedo-Ayones | 0.77 km | 7.4% | 57 m | N/A |
| Carretera de San Martín de Luiña a Brieves | 0.97 km | 5.5% | 54 m | N/A |
| Luarca / Ḷḷuarca | 0.63 km | 8.5% | 53 m | N/A |
| Luarca / Ḷḷuarca | 0.76 km | 6.9% | 53 m | N/A |
| N-632a | 48.53 km | 0.1% | 51 m | N/A |
| Carretera de Otur a Villapedre | 0.5 km | 9.5% | 48 m | N/A |
| Luarca / Ḷḷuarca | 0.81 km | 5.8% | 47 m | N/A |
| Carretera Almuña - Paredes | 0.76 km | 5.9% | 45 m | N/A |
| P.R. AS 4 - Senda del Cabo Busto | 0.47 km | 9.4% | 46 m | N/A |
| Carretera de San Martín de Luiña a Brieves | 28.91 km | 0.2% | 44 m | N/A |
| Luarca / Ḷḷuarca | 1.85 km | 2.3% | 42 m | N/A |
| Luarca / Ḷḷuarca | 0.63 km | 6.6% | 42 m | N/A |
| Luarca / Ḷḷuarca | 0.5 km | 8.1% | 43 m | N/A |
| Carretera Luarca - Villayón | 18.16 km | 0.2% | 40 m | N/A |
| VA-3 | 0.68 km | 5.6% | 38 m | N/A |
| Luarca / Ḷḷuarca | 0.83 km | 4.3% | 35 m | N/A |
| Carretera de San Martín de Luiña a Brieves | 1.03 km | 3.4% | 35 m | N/A |
| Carretera Llovio - Canero | 21.8 km | 0.2% | 35 m | N/A |
| Luarca / Ḷḷuarca | 0.35 km | 9.5% | 33 m | N/A |
| Luarca / Ḷḷuarca | 0.49 km | 6.8% | 33 m | N/A |