Definition of legend and geography from: The American Heritage Dictionary/ of the English Language, Fourth Edition. Houghton Mifflin Company. http://dictionary.reference.com/browse/geography.
Definition of reference frame from: www.dpc.ucar.edu/VoyagerJr/glossary.html
Definition of sketch map from: http://dictionary.reference.com/
*Definition adapted from: Armantrout, N. B. compiler. 1998. Glossary of aquatic habitat inventory terminology. American Fisheries Society, Bethesda, Maryland.
#Definition adapted from: Krygier, John and Denis Wood. 2005. Making maps: a visual guide to map design for GIS, accessed through http://makingmaps.owu.edu
$Definition adapted from: glossary of cartography and map terminology, http://www.worldatlas.com/mapterms.htm, sensu Maps for America, 3rd edition.
Contour *
Geographic Information System (GIS) *
Global Positioning System (GPS) *
Latitude $
Relief *
Transect *