Anello di escursionismo di 330.76 km con partenza da Durango. Il dislivello positivo è di 5246 m, con un'altitudine compresa tra 1859 m e 2453 m. Durata stimata: 145 h 10 min. Comune di partenza: Durango (New Mexico, États-Unis).
Questa escursione comprende 20 salite significative. Con un dislivello positivo totale di 3090 m su 249.28 km, con una pendenza media del 1.2%.
- Climb 1 (at km 9.59 km): +240 m over 4.83 km, average slope 5.0%
- Climb 2 (at km 33.65 km): +140 m over 5.89 km, average slope 2.4%
- Climb 3 (at km 41.94 km): +38 m over 1.56 km, average slope 2.4%
- Climb 4 (at km 54.75 km): +80 m over 1.85 km, average slope 4.3%
- Climb 5 (at km 64.24 km): +152 m over 3.89 km, average slope 3.9%
- Climb 6 (at km 218.62 km): +112 m over 3.90 km, average slope 2.9%
- Climb 7 (at km 226.03 km): +78 m over 1.71 km, average slope 4.6%
- Climb 8 (at km 232.65 km): +74 m over 1.19 km, average slope 6.2%
- Climb 9 (at km 244.33 km): +83 m over 3.58 km, average slope 2.3%
- Climb 10 (at km 263.42 km): +259 m over 8.93 km, average slope 2.9%
- Climb 11 (at km 292.42 km): +349 m over 9.94 km, average slope 3.5%
- Climb 12 (at km 320.41 km): +184 m over 3.12 km, average slope 5.9%
- Climb 13 (at km 348.56 km): +47 m over 986 m, average slope 4.8%
- Climb 14 (at km 371.36 km): +134 m over 5.70 km, average slope 2.4%
- Climb 15 (at km 395.42 km): +99 m over 6.04 km, average slope 1.6%
- Climb 16 (at km 547.97 km): +313 m over 149.98 km, average slope 0.2%
- Climb 17 (at km 562.58 km): +65 m over 2.59 km, average slope 2.5%
- Climb 18 (at km 594.29 km): +165 m over 7.47 km, average slope 2.2%
- Climb 19 (at km 616.24 km): +108 m over 6.10 km, average slope 1.8%
- Climb 20 (at km 681.57 km): +370 m over 20.04 km, average slope 1.9%
