Far from being “important” in a positive sense, the Snake River was a dreaded barrier for Oregon Trail emigrants. Its swift current, unpredictable depth, and lack of ferries at key crossings (Three Island Crossing, Glenns Ferry) caused drownings, lost wagons, and costly delays. Pioneers often had to caulk wagon beds for floating or pay exorbitant ferry fees. The river marked a psychological turning point: survive the Snake, and the worst was largely behind you.