Includes bibliographical references (p. 24) and index.
Contents:
What is a map? -- What is a topographic maps -- What is a scale? --Reading a topographic map -- What are contour lines? -- All kinds of contours -- How steep is the land? -- Working with a topographic map -- Hiking with a topographic map Topographic maps today.
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.