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How to determine which way the river flows

1. Find the compass and orientate the map

2. Locate the river/stream, it is where the contour lines make a V shape

3. Find the points of the V's. The points are directed upstream, therefore the river flows in the opposite direction

4. Find the values of the contour lines and ensure that the river/stream is flowing in the direction of the lower elevated ground.

5. Accurately measure the stream/river flow from North to determine an accurate direction.