On a contour map, streams flow perpendicular to the contour lines. When the contour lines are spaced closely together, they indicate a steep slope, while widely spaced lines suggest a gentle slope. If the contour lines form a "V" shape that points upstream, the stream flows downhill, away from the point of the "V." Therefore, the direction of flow can be determined by observing the orientation of the contour lines in relation to the stream.
Copyright © 2026 eLLeNow.com All Rights Reserved.