Idaho is a landlocked state but what few realize is that it’s connected via one of the longest river systems in the US to the Pacific Ocean.  For millennia, a certain species of traveler, the steelhead trout, has migrated through this river corridor, the Salmon, from the mountains of central Idaho to the ocean and back again.   And a mere hour drive from Sun Valley lies the headwaters of the Salmon River, the origin of the steelhead run. Set amidst the awe-inspiring Sawtooth Mountains, these freestone waters play host to spawning spring steelhead.