The Marcha de Otoño por los Montes de Tobía is a 20-kilometer autumn mountain walk based in Tobía, a village in La Rioja. Organized by the Asociación Amigos del Roble de las Once, it is intended for hikers, not road runners. The entry fee is low and includes accident insurance, two aid stations, and lunch at the finish.
The route crosses the mountains and forests surrounding Tobía, offering a day outdoors as much as a 20-kilometer challenge. Event accounts note autumn fog in the hills, a beautiful forest, and rain that has historically held off for the full route and the post-walk migas. Now in its tenth edition, it is a local hiking fixture, though participants should remain aware of the course as minor marking issues have occurred previously.