Collada de la Gallina is a high mountain pass at an elevation of 1.910m (6,266ft) above the sea level, located in the eastern Pyrenees mountains, on the border between Andorra and Spain. It is grade 1a sp (very difficult).
This pass can be closed anytime when the access is not cleared of snow. There are a couple of ways to climb this pass. Starting from Bixessarri, the road is 11,8km at 8,3%, with more nasty ramps than is truly necessary. The additional 4km after Canolich add three more ramps of 15% and continue at the same kind of gradient, keeping it high and with the last 2km at 9,5% this is plenty tough enough. This route was the end of the eighth stage of the Vuelta de España in 2012 and is a very demanding climb. By this side, the road is asphalted.
The other side to reach the pass starts in Sant Julià de Lòria via Fontaneda. The climb is similar with 11,8km at 8,5%. But this side includes 4 kms of switchbacks and the last km is totally on gravel.