A topographic map indicates the direction of river flow through the use of contour lines, which represent elevation. Rivers flow downhill, so when contour lines bend or form a V-shape, the point of the V indicates the upstream direction, while the open end points downstream. Additionally, the elevation change shown by the contour lines helps to visualize the slope and flow direction of the river. Thus, by analyzing the contour patterns, one can determine the flow direction of the river.
The answer is... A river only flows down hill
No river flows southwest through Dublin. The river Dodder flows from the southwest, in a northeast direction and the river Tolka flows in a southeasterly direction.
The Nile river flows in the opposite direction of the Euphrates and Tigris river.
It flows West.
Water always flows down a river, so upstream is the opposite direction from the direction in which the water flows.
The Magdalena River of Colombia mainly flows north.
west
the river flows north
It flows downwards. It flows downwards.
it flows generally in the southwest direction
The Darling River flows in a southwesterly direction from southern Queensland through western New South Wales into the Murray River.
Nile River.