The salmon swim 'upriver' [='upstream'] to spawn.
(..) boot print up in the tree. It's got a cross in the heel. Somebody's been in our boat. Shit. Let's go! We gotta go if you wanna make it back. Takes twice as long goin' upriver. Hold on. Up there, they stop. Where the hell'd he go? I don't know. Shit, you know that guy? (..)2012 Mud