 |  | | | | |  | | From its northern savannas and plains to walks in the clouds on Central America's highest peaks, from lush forests to pristine jungle-lined beaches, Costa Rica's beauty and diversity beckon travelers from around the world. Our detailed, newly revised AdventureMap is the perfect planning tool and in-country companion. We also offer beautiful wall maps of Costa Rica and Central America. | | | | |  | |  | |  | |  | |  | | Browse nearly 500 National Geographic magazine supplement maps covering more than 100 years, and purchase copies printed to order and suitable for framing at... ngmapcollection.com | | | | Two of America's clearest and most beautiful spring-fed rivers make up the Ozark National Scenic Riverways in southeast Missouri, the first national park area to protect a wild-river system. See our new Trails Illustrated map. | | | | Browse through history using maps of historic news events and milestones with National Geographic's new feature, a.map. a.day. | |  | |  | |  | | |  | | Projection: where math meets the art of mapmaking | The surface of a sphere cannot be made to lie flat, but planes, cones and cylinders can. Using these "developable surfaces" and applying calculations, cartographers can project Earth's features onto flat paper. Some distortion is unavoidable. Only at exactly the points where the developable surface touches the globe is the flat map completely accurate. Thus, mapmakers place the points of contact at the part of the globe they wish to map most faithfully.
See examples of projections in National Geographic's Atlas of the World, Eighth Edition. For teachers, a lesson plan on map projections is here. |  | | |  | | | You received this editorial/commercial e-newsletter from National Geographic because the information
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