La Senda Amarilla is held in Oliván, a village in Huesca in the Spanish Pyrenees. Its listed format includes a 20 km march with 1,120 metres of climbing, and the march is non-competitive, so the point is covering the mountain route rather than racing for places.
The next edition is listed among upcoming Huesca events, with October shown as the target month but the date still marked as unconfirmed. With that much elevation packed into 20 km, it suits walkers and trail people who want a hard day out around Oliván without the pressure of a timed race result.