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DEM2TOPO is a program to generate vector contour levels from freely available digital elevation model (DEM) data. These contour vectors are ideally suited for upload to portable GPS units where commercial topographic maps are unavailable or inadequate. The importance and use of topographic maps Topographic maps is of great importance in many important studies that relate to various areas of life, because they accurately represent all phenomena on the surface of the earth, ie , all natural monuments and landmarks that are man-made. The topographic map of the most important tools used by the geographical and geological engineer , planned ... State Topographic Map Indexes . State Topographic Map Indexes. Featured Product: 85745. NEW YORK INDEX, NY. National Atlas Maps . National Atlas Maps. Topographic map coverage of Canada is based on the National Topographic System (NTS). Black: buildings, railways, power transmission lines, geographical names (toponymy), certain symbols, geographic coordinates, precise elevations, border information, and surround information.Topographic Map: Rockford Map can make custom topo maps that show contour lines for any area in the United States. Our topography data is provided by the USGS and can be layered on your map with other features and data to help you see the change in elevation of the land. Blog Posts: Custom Topographic Maps for Strategic Business Development The topographic map doesn't provide enough detail to tell us the direction in which the pollutants would flow, so we'll use more modern methods. Using Google Earth, search for Lake Grandin, FL, and view the chain of lakes along line A-B. Move the cursor to each lake and record the elevation of its surface. Mar 24, 2017 - Explore Rebecca Lynn's board "Topographical / elevation maps" on Pinterest. See more ideas about elevation map, topographic map, map activities. Introduction to topographic maps, contour lines and contour interval: students create a 3d clay model to develop their own topographic map. Grade Level: 6-8 Assessments: Grade maps according to the contour line guidelines given in the mini lesson prior to the lab. Grade written answers to the questions listed in the “Follow-up” section below. Label the contour lines based on the map interval . Find the contour line before and after the point you are trying to determine . Your answer should be a point in between those lines . Contour Interval = 10 m. 10. a. 20. 30. b. c. Give a possible elevation for . point “a” Give a possible elevation for . point “b” Measuring Earth When might someone use a topographic map? 25 What do hachured lines show? What are the rules concerning hachured lines? What are the steps to draw a topographic profile place a piece of paper between the points mark where every contour line touches the edge of the paper determine the elevation of each mark place the paper on the graph and mark the elevation of each contour line ... Map - Map - Map projections: A great variety of map projections has been devised to provide for the various properties Hachures are short lines laid down in a pattern to indicate direction of slope. Topographic maps provide the basic data for many other kinds as well as working bases for thematic...hachured lines: 1. The outer most hachured line is equal in elevation to the lower of the contour lines it is in between. 2. The elevation of any inner hachured line is equal to a decrease in elevation by the contour interval. 290 290 Outer most hachured line Contour line it is between Next hachured Contour interval = 10 line Each contour line on a topographic map represents a ground elevation or vertical distance above a reference point such as sea level. A contour line is level with respect to the earth's surface just like the top of a building foundation. All points along any one contour line are at the same elevation. 14. Contour lines that cross stream valleys form a "V", that "V" points in the _____ direction. 16. Contour lines connect points of _____ elevation. 17. The amount of relief in between index contours is _____ times the contour interval. 20. A silhouette or cross section of the topography along a given line is called a topographic _____. 21. Topographic map coverage of Canada is based on the National Topographic System (NTS). Black: buildings, railways, power transmission lines, geographical names (toponymy), certain symbols, geographic coordinates, precise elevations, border information, and surround information.