Foo Pass

The Foo Pass () is a mountain pass of the Glarus Alps, located on the border between the Swiss cantons of St. Gallen and Glarus, at an elevation of . It crosses the col between the peaks of Foostock and Piz Sardona.
The pass is traversed by a trail, which connects the village of Weisstannen, in the canton of St. Gallen at an elevation of , with the village of Elm, in the canton of Glarus at an elevation of . The trail forms part of the Alpine Pass Route, a long-distance hiking trail across Switzerland between Sargans and Montreux.
The alpine pasture below the pass on the St Gallen side is notable for its marmot colony.