Tools and Data
A GPS receiver is a tool that uses satellites to pinpoint locations. The locations are stored as coordinates (i.e. latitude and longitude) in the GPS receiver.
This chapter uses a Garmin eTrex Legend, however other GPS receivers could be used.
Tool CostGPS – $100 - $300, depending on model.
Class sets of GPS Loaner Units are available through GIS etc GSA / GPS Loaner Program for a minimal charge
See the user manual for the type of GPS being used. Garmin manuals can be found at:
All Garmin Manuals
Google EarthThis chapter uses Google Earth http://earth.google.com
Google Earth is online mapping and visualization software that enables users to combine geographic information with satellite imagery. It allows layering of images and provides the means to determine relationships between "stacked" visualizations. It reads formatted KML files. This tool provides users with a way of manipulating Earth views through rotating, tilting, and zooming in and out.
GoogleHeadquartered in Mountain View, CA.
Google Earth is based on technology from Keyhole, a company which Google acquired in 2004.
Google Earth is a free download offered by Google. Other more powerful versions are available for purchase.