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GEL 1008 PHYSICAL GEOLOGY |
Physical Geology On-line Lab and Helpful Lab Hints
Exercise 6: Topographic Maps
Drawing Contour Lines: Step 2
Draw the first contour line (in this case, the 10-foot line) by connecting the elevation points you marked. The 10-foot line passes through the elevation point marked 10. Notice that the line parallels the shore except where it makes a V as it crosses a river.