The Via de Los Diedros in Peña Olvidada is a very aesthetically pleasing line which runs along the wall up to the central ledges, but the typical rock of this mountain means that we have to pay attention in some sections and climb tactfully. An alpine route that will require us to climb all its pitches with concentration.
- The most difficult part of the second pitch is practically equipped, but has obligatory sections between anchors and uncertain rock in some parts. The second part is easier and needs friends to be installed.
- The fourth pitch starts to the right of the belay station (there is a bolt above the belay station on the left that can be confusing. It's not that way!) A beautiful pitch that requires temperate climbing.
- The fifth pitch is the most beautiful and with good rock.
All the belay stations except for the last one on the ledges are equipped with bolts without rings, so if you don't climb the last pitch you can rappel the route abandoning cordelette and oval shackles. If we do not take this option, we can descend by climbing down the ledges (IV) or by continuing to the rappels below the Circo Gris.
Mariano Caso has a very good description of this route in his blog.
"Boarding" the fourth pitch 
Descent to the ledges 
Second pitch 
Nice atmosphere in the last pitches
FACT SHEET
LENGTH
DIFFICULTY
DURATION
EQUIPMENT
DESCENT
FIRST ASCENT