Table of Contents
What happens to the contour lines when the slope is steep?
In hilly areas, the contour lines are close together while they are wider apart on flat slopes. The closer the contour lines, the steeper the slope.
When the contour lines are spaced far apart the slope is more?
Closely spaced contour lines represent steep slopes, conversely, contour lines that are spaced far apart represent gentle slopes. 3.
Do closely spaced contours indicate a steep slope?
Closely spaced contour lines indicate steep slopes. Widely spaced contour lines indicate gentle slopes or relatively flat areas. A contour line that forms a closed loop with no other contour lines inside indicates a hilltop. Contour lines form “V” shapes in streams.
How are gentle slope and steep slope are shown in a topographical map?
A contour line is drawn to show places of equal heights. Contour lines and their shapes represent the height and slope or gradient of the landform. Closely spaced contours represent steep slopes while widely spaced contours represent gentle slope.
How can you tell if the land is steep and if it has a gradual slope?
Contour lines show the elevation of the ground. Contour intervals reveal how much vertical distance there is between each contour line—closely spaced contour lines indicate very steep slopes. Rounded contour lines typically indicate a downhill direction (gradual slope).
Which of the following would indicate a gentle slope?
Look for areas where the contour lines are spread apart – they indicate a gentle slope.
1. contour lines do not cross each other, divide, or split 2. closely spaced contour lines represent steep slopes, conversely contour lines that are spaced far apart represent gentle slopes 3. Contour lines trend up valleys form a V or a U where they cross a stream
What does a widely separated contour line mean?
Widely separated contour lines indicate a gentle slope. Contour lines that are very close together indicate a steep slope. The figure above illustrates various topographic features. (b) Notice how a mountain saddle, a ridge, a stream, a steep area, and a flat area are shown with contour lines.
How to find the contour lines of a hill?
Pick two contour lines that are next to each other and find the difference in associated numbers. 40 feet – 20 feet = 20 feet The contour lines in this figure are equally spaced. The even spacing indicates the hill has a uniform slope.
Which is the thickest line in a contour line?
1. Index lines are the thickest contour lines and are usually labeled with a number at one point along the line. This tells you the elevation above sea level. 2. Intermediate lines are the thinner, more common, lines between the index lines. They usually don’t have a number label. Typically one index line occurs for every five intermediate lines.