Agriculture Reference
In-Depth Information
6
Where Are You?
In this chapter you will learn about:
How to accurately locate features on a site using a referencing system
•
How to apply a coordinate system, including longitude and latitude
•
The appropriate components of a property and topographic map for landscape
site-grading and design projects
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The use of a grid system to locate spot elevations and design features for a site
•
The Language of Maps
Maps are as much a form of communication as pages of written words. Both
utilize a language consisting of a set of symbols organized by a set of rules so
that those who know the rules can arrange or sequence the graphic symbols to
communicate an intended purpose. Likewise, a person knowing the rules can
read and understand what is contained in a map. The rules used in map mak-
ing derive from geographic and cadastral systems and graphic conventions. If
you learn and understand the systems, symbols, and graphic conventions that
are used in making maps, you will generally be able to read a map and mine a
wealth of information from it.
Just as there are different languages, each with its conventions of syntax,
there are many different types of maps, each having its unique set of purposes.
Depending on the purpose for creating a map, there are many graphic symbols
and conventions that map types might apply. Each map type may have symbols
