The Spectrum on the Bustamante Needle is a hidden and not very flashy route, however, if we combine it with the two last pitches of the Dopamina, it becomes a very complete route, similar in terms of quality to other better-known routes in the area such as Rojo Libanés. Highly recommended.
- The first pitch is a dihedral-flake that can easily be spotted from the base, it's a sustained climb but that can be well-protected with friends. There's a piton on the left side of the dihedral, but it doesn't belong to the route (marked "NO" in the topo). Grade a bit tight in our opinion.
- The second pitch is a sustained wall made of exceptional rock, almost equipped with bolts and pitons, but obligatory.
- The third pitch continues along the wall, very good quality rock and obligatory move, but protected with a bolt relatively close by. Belay station using two 8 mm bolts.
- In the fourth pitch the difficulty decreases and the terrain becomes more alpine. Belay station using one piton.
- The fifth pitch consists of a tough dihedral-crack. Belay station using one piton in the south fork.
From here you can downclimb towards the east (III+º), or reach the summit of the Bustamante Needle by the Diedro Rubio or Dopamina, making it a longer and more complete climb.