review of Topographic Maps

How to read a topo map Have a look at the following map and complete the questions (the measurements are in meters) - What is the height of A? 900m 850m 800m What is the difference in height between A and B? 100m 200m 0m What is the contour interval of the map? 100m 200m 50m What is the approximate height of X? Greater than 1600 1500m 1600m Analyzing Topographic Maps Label the Topographic map using the word bank. Analyze the map and answer the questions below.Word Bank: Peak Sea Level Valley Contour Line Sea Level Peak Valley Contour Line 1) If the first layer of your map is sea level and the contour interval = 10 ft., then what elevation is point C? 0 ft 10 ft 5 ft 100 ft 2) Which side of the hill probably has a river flowing down it? North South East West What is the difference in elevation between point A and point B? 30 ft 17ft 50 ft Which hill would you visit if you want to go rock climbing on a cliff? Aurora Hill Holland Hill Girard Hill What is the difference in elevation between the tallest and shortest hill? 3 20 30 Label the Following Topographic Map Word Bank:Depression 1150 River 1230 850 Depression River 1150 1230 850 Read the paragraph. Fill in the blanks to complete the sentences.Word Bank Elevation Slope Contour Lines Head V-shapes Volcano Downhill Steep Crater Contour Interval Gentle Upstream Hashmarks Topographic MapsThe topography of a region can be shown on a map. Topographic maps represent geographical features, such as hills and valleys. Topographic maps use contour linesto show geographical features. A contour line is a line of equal elevation. If you walk along a contour line, you will not go uphill or downhill. Topographic maps are also called contour maps.The rules of topographic maps are:Each line connects all points of a specific elevation Contour lines never cross. After all, a single point can only have one elevation. Adjacent contour lines are separated by a constant difference in elevation (such as 20 feet or 100 feet). The difference in elevation is the contour interval. The The contour interval is sometimes indicated in the map legend. Scales indicate horizontal distance and are also found on the map legend.Interpreting Contour MapsHow does a topographic map tell you about the area? Let’s consider the following principles:1. The spacing of contour lines shows the slope of the land. Contour lines that are close together indicate a steepslope. This is because the elevation changes quickly in a small area. Contour lines that seem to touch indicate a very steep slope, like a cliff. When contour lines are spaced far apart, the slope is gentle So contour lines help us see the three-dimensional shape of the land.Rivers and StreamsWhen contour lines cross a stream, they form a v-shapethat indicates a river or stream. The "arrow" of the v-shape always points upstream towards the headof the river. Everyone knows that rivers, streams and creeks always flow downhilltoward the mouth of the river and empty into a larger body of water.DepressionsAnother recognizable landform on topographic map is a depression. A depression is sort of the opposite of a hill. It is a ditch, or gully, or pit, where the elevation decreases towards the center. On a topographic map depressions look a lot like hills. They will appear as a series of closed circles one inside the other. However, to distinguish them from hills, depressions have hashmarkson all of the contour lines. This allows us to easily identify them as depressions. The lowest point in a depression is inside the inner most circle. Examples of a depressions include a volcanoand a crater