picabo is located about north of the snake river along the northern edge of the snake river plain, a topographic depression that cuts across the basin and range mountain structures of southern idaho. the nearest flowing stream is silver creek, a scenic spring-fed tributary of the little wood river, a key source of irrigation water for eastern blaine county. the pristine silver creek is renowned among fly fisherman and was a favorite of ernest hemingway, who enjoyed hunting and fishing along the stream with local rancher, bud purdy.