up·stream 
/ˈʌpˈstri:m/ adverb
/ˈʌpˈstri:m/ adverb : in the direction opposite to the flow in a stream, river, etc. : toward the source of a stream, river, etc.
▪ salmon swimming upstream [=against the current] to spawn ▪ The canoe capsized upstream of the dam.
▪ salmon swimming upstream [=against the current] to spawn ▪ The canoe capsized upstream of the dam.
— upstream adjective
▪ upstream farms
▪ upstream farms
