11. A properly labeled contour map helps the reader to quickly interpret the shape of the terrain. 12. The "'contour interval "'of a contour map is the difference in elevation between successive contour lines. 13. Do we have a contour map available? 14. Survey teams were put out to produce detailed contour maps of the options on the different routes. 15. Actually they are not actually heights : I am interested in creating a contour map of house prices. 16. In that way one can produce sound level isopleths, or contour maps , which faithfully depict outcomes over variable terrain. 17. Scrivener's contour map of the selected site was used as the basis for entries in the Canberra design competition. 18. The automated instrument can produce colour-coded contour maps of the eye's topography or even three-dimensional visualisations of its surface. 19. Grid models are commonly used to produce color-coded contour maps by averaging the regions between cells ( Figure 4 ). 20. Contour map of the Gulf of Mexico as sounded by " George S . Blake " between 1873 and 1875.
