 The Upper Tuchodi valley runs between mountains with dwarf willow, dwarf birch, alpine grasses, sedges and lichen above the tree line, which is about above sea level.Lower down, there are forests of lodgepole pine and white and black spruce.White spruce and aspen, and some balsam poplar, grow along the riverside, and there are willows and wildflowers on the sandy gravel bars of the river.