The Col de la République or Col de Grand Bois (1,161 m (3,809 ft)) is a mountain pass in the Pilat massif within the Pilat Regional Natural Park in the Loire department of the Auvergne-Rhône-Alpes region in southern France.

It was the first climb on the first Tour de France in 1903, but was the scene of notorious violence in 1904 that involved fighting and officials firing gunshot warnings.

[1] The Beguines were well established in Saint-Jean-Bonnefonds, but in November 1794 they moved 20 kilometres to the plateau to be ready for the arrival of the prophet Elijah.

[4] At the top is a monument in memory of Paul de Vivie, who wrote under the pseudonym Vélocio and was important in the development of bicycle touring.

In 1905, the tour's organiser Henri Desgrange chose to ignore the col de la République, and focused instead on the introduction of the Ballon d'Alsace, because he saw that he had missed the opportunity of publicity previously.