USGS Learning Web :: Lesson Plans :: Exploring Maps :: Explorers

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Explorers Introduction

Exploration depends on the ancient skill of navigation. Columbus, for example, was not sure how far he had to sail westward. In his journal he recorded his latitude observations and estimates of distance traveled, under-reporting this distance to the crew, "lest the trip be long." The tales of explorers are filled with adventure and heroism. Join in their discovery and experiences in this Explorer section of the Web.

Intro & Lessons | Teacher's Guide | Explorers

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Click to Link to Download Map Projections. It describes and illustrates four main types of map projections commonly used to present thematic data.

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Last modified: 16:30:00 Tue 29 Jan 2002 act