The fish swam upstream to lay their eggs.
Located or moving towards the source of a river or stream.
The boat traveled upstream against the current.
In the direction towards the source of a river or stream.
We hiked to the upstream to find a good fishing spot.
The area or direction towards the source of a river or stream.
They decided to upstream the boat to avoid the rapids.
To move or direct something towards the source of a river or stream.
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