Because its geologically difficult to divide Idaho into different regions that evenly distribute the waterfalls in the state, the divider between the two regions for Idaho has been set at the Salmon River.
Northern Idaho is a region largely consisting of rolling mountains, often composed of rocks of the granite family, broad valleys and small lakes pock-marking cirques left over from glaciers long since melted. Not many of the waterfalls in this region are very significant in height, but some possess a large volume and many are very scenic. This part of the state receives more rainfall than the south, but the winter snowpack isn’t quite as heavy as that in the Sawtooth Mountains, so even the mountain waterfalls in this region lose much of their volume in the late summer. |
