When a contour line crosses a river or stream, they make a "V" shape and points to the direction the river is flowing.
straight line
The point of the V is probably where there is a stream, river or wash.
Dante faints when he cross the river.
A contour map shows lines which connect areas equal in height. These lines are called contours and should be labelled to show the height that each contour represents. A stream flows downhill, this is due to gravity. Thus, to determine which way a stream flows, find contours, at least two, that intersect the path of the stream, then look at the heights these contours represents(their labels). The stream will flow from the contour labelled with the higher number towards the contour labelled with the lower number. PS. sometimes not all the contours are numbered, but only say every fith contour is numbered, then you can assume that all contours are equally incremented i.e. the height difference from one contour to the next stays equal.
The point of the V is probably where there is a stream, river or wash.
it becomes
They join together- it is called a tributary xx
Contour lines don't really "cross" if we consider them strictly. But they can "merge" at a point where there is an abrupt change in elevation, as a cliff. Let's look at things a bit more closely. If we map a hill with one side cut straight down by something like a quarry or the action of a river, we'd see contour lines on a map coming together to "merge" along the face of the cliff. There are "multiple elevations" represented by the face of the cliff, and two or more lines might become one line along what is the cliff face on our map.
A stream or river called that flows into a larger stream or river is called a tributary.
tiber river
The Yellow River crosses the Great Wall in Shangsi Province of China.
you can determine the direction a stream flows on a contour map by seeing which way the contour lines bend.