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MAP PROJECTIONS <p> <p> A map projection is used to portray all or part of the round Earth on a flat surface. This can not be done without some distortion. Every projection has its own set of advantages and disadvantages. There is no "best" projection. The mapmaker must select the one best suited to the needs, reducing distortion of the most important features. <p> <p> Mapmakers and mathematicians have devised almost limitless ways to project the image of the globe onto paper. Scientists at the U.S. Geological Survey have designed projections for their specific needs - such as the Space Oblique Mercator, which allows mapping from satellites with little or no distortion. <p> <p> This document gives the key properties, characteristics, and preferred uses of many historically important projections and of those frequently used by mapmakers today. <p> <p> Map Projections is a great learning tool for schools, conferences and special events. It is offered free of charge in limited quantities, but does come with a $5.00 handling charge for each order mailed. <p>
DISCOVER THE MANY TYPES OF MAPS AVAILABLE FROM THE U.S. GEOLOGICAL SURVEY - BUSINESS PARTNER BROCHURE
US 5D OUTLINE WITH STATE NAMES, US
Putting Down Roots in Earthquake Country Your Handbook for the San Francisco Bay Region
Disease Emergence and Resurgence: The Wildlife-Human Connection <p> </p> <font color=red><i> <p> This product is not available for order, it can only be downloaded from here (click on image) or within the Publications Warehouse at https://pubs.er.usgs.gov/publication/cir1285 </p> </i> </font>
EXPLORING CAVES POSTER
The Heat Is On: Desert Tortoises and Survival <p> There is no one thing killing off the desert tortoise, but a multitude of threats are interacting.
Geologic Hazards at Volcanoes (a poster)
NATIONAL ATLAS GENERAL REFERENCE MAPS NORTH AMERICA
SCIENTISTS IN ACTION!
USING GPS WITH MAPS, DVD 13512 BY GPS OUTFITTERS INC. WINCHESTER, VA USA
The Life Cycle of a Mineral Deposit-A Teacher's Guide for Hands-On Mineral Education Activities
Field manual of wildlife diseases: general field procedures and diseases of birds
LAND AND PEOPLE: FINDING BALANCE
US 5E OUTLINE W/O STATE NAMES, US