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Mastering Topographic Maps: Your Guide to Reading and Understanding Topo Charts

Explore the world of topographic maps! Learn how to interpret contour lines, elevation, and landscape features in 2D format. Discover the uses of topographic maps in various activities like hiking, site planning, and more.

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Mastering Topographic Maps: Your Guide to Reading and Understanding Topo Charts

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  1. Topographic Maps

  2. Topo Maps • Topographic maps : • show elevation of the land using contour lines. • takes 3D landscapes and represents them in a 2D fashion. • have a variety of uses, from planning the best route for a hike to determining a location for a school or an airport.

  3. Parts of a Topo Map • Name of the Map • Direction • Latitude and Longitude • Scale • Contour Lines • Contour Interval

  4. Name of the Map • Located at the top right of the map.

  5. Direction • Look for the north arrow. • N E W S

  6. Latitude and Longitude • Located on the edges of the map.

  7. Scale • A representative distance on the earth’s surface.

  8. Contour Lines • Lines of equal elevation • THEY NEVER CROSS • Close = steep surface. • Spread apart = gentle surface

  9. Contour Interval • The change in elevation from contour line to another contour line.

  10. Earth Science Notes • A. Topographic Maps • Shows the elevation of the land y using contour lines, and shows other natural and man-made features. S • B. Contour line • Lines of equal elevation. • Elevation – distance above sea level. • Contour Interval - The change in elevation from contour line to another contour line. • Index Contour Line – Thick contour line that gives elevation.

  11. Earth Science Notes • Depression • Bench Mark – A point of known elevation from which all other points are measured. • Spot elevation • 1. contour interval • 2. depression • 3. index contour interval • 4. 20 ft • 5. 259 ft • 6.east • 7.closer together • 8.

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