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Part D: Map Scale The scale of a map is the ratio between a distance on the map, and the same measured distance on the earth. For example, a scale of 1:100 means that 1 inch on the map represents 100 inches on the earth's surface. 11. What is the scale for this map: _ 12. Every inch on this map would represent_ 13. Using this scale, each inch would represent how many feet on Earth? (Hint: Divide by 12)_ feet _inches on Earth. 14. How many miles would this equate to? Hint: To calculate what fraction of a mile this is, divide your previous answer by 5280, the number of feet per mile: miles. Part E: Using the Scale to Measure Distances To measure distance on the map, mark off the desired distance on the edge of a piece of paper and then measure it against the graphic scale. Note the left end of the scale, called the extension, is divided into tenths. Measure and record the following distances to the nearest tenth of a mile: 15. The width of the map from left to right is:_ 18. What is a contour interval? _miles. 16. The length of the Huron River (use the center of the river, and be sure to follow the curves of the river (it helps to use a string for this) from the left to the right side of the map:____miles. Part F: Contour Lines and Intervals 17. What is a contour line? 19. What is the contour interval on the map (include units)?
Part F: Contour Lines and Intervals 17. What is a contour line? 18. What is a contour interval? 19. What is the contour interval on the map (include units)? Lab: Topographic Maps 20. A contour index is used to help make elevations easier to read. List two properties of these that help one identify the elevation of an area on a map: Page 34 21. What is the elevation of Washtenaw Community College? 22. What is the elevation of Burn's Park? 23. Closely spaced contour lines show a (steep, more gradual) slope. (circle one) 24. Contour lines that form a closed loop indicate what type of feature? (a Itop / a depression) Circle one. 25. A closed loop with hachure marks indicates what type of feature? (a hilltop / a depression) Circle one. Part G: Calculating Slopes The average slope between any two points of a hill, river, road, etc., can be determined using the following formula: Average Slope = Difference in elevation (ft.) Distance between two points (mi.) 26. Calculate the average slope for the Huron River, using the elevation markings given in the river (774 ft. on the western side of the river and 711 ft. on the eastern side of the river): 27. What direction does the Huron River flow? Hint: Water moves from higher elevation to lower elevation.
422230 1730 834 1.35 AND UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY - 421556 APEN PITYSTRELO N 199 ANN ARBOR f photo 1963-64 Fed check P 1927 or Anic 1000al Trab some 17, in t Mapped edited, and published by the Geological Survey CUS NORTHFIE Nak To pacote picted North American D 1983 tras Common C J RBOR ORTRON 4 WHEN OUTH YO SCALE 134000 Doda RIVER CONTUR INTERNAL 10 FEET MWAG TSFIELD THE COMPUES WITH NATIONAL MAP CUSTARDS FOR SALE BY J.S. GEOLOGICAL SURVEY, DENVER, COLORADO OR RESTON VIRGINIA BS AND GEOLOGICAL SURVEY MICHIGAN DEPARTMENT OF NATURAL RESOURCES LANSING, MICHIGAN 400 A FOLDER SONG TOPOGRAPEC MAPS AND SYMBOLS SARALABLE ON REQUEST SEVENTY tort!! ST The inde d checked Map edited 1983 ANN ARBOR EAST QUADRANGLE MICHIGAN-VASTENAW 00 7.5 MINUTE BERES (TOPOGRAPHIC) 210 FEET 18 AM H PRRIO Perderer Arki TERSANT! YOLAND ROAD CLICATION Light MU Qusa ANN ARBOR EAST, MICH ARBOR -2083-06-1-424 PHOTOREVISED 190 179 P +4219 22 USES NMD HISTO OCT-6 089 REC'D FILE COPY