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The students will learn to identify watersheds on topographic maps by learning how to interpret contour lines and distinguish adjacent watersheds by the ridge line between them. Required materials include laminated 7.5 topographic maps of a local city and watershed, and grease pencils. This activity is part of the Ground Truth Studies Teacher Handbook, which provides more than 20 activities to build student understanding of global change and remote sensing, and includes background chapters for teachers, glossary, and appendices.
This resource is located on page 101 of the PDF document.