The 25 runs in Spain & Andorra with the highest average gradient, measured top to bottom with the elevation model. The steepest is Pasarells at Baqueira Beret, averaging 51% over 425 m. Each resort's page shows the profile of every run, section by section.
Average gradient = total vertical ÷ run length (as %), for graded runs (green to black) of at least 300 m. On the hardest pitches the local gradient is steeper than the average.
Pasarells, at Baqueira Beret, with an average gradient of 51%. Next come Pala Boja (Vall de Núria, 50%) and La Canal (Masella, 48%).
Average gradient = total vertical ÷ run length (as %), for graded runs (green to black) of at least 300 m. On the hardest pitches the local gradient is steeper than the average. Data from OpenStreetMap via OpenSkiMap.