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Plane-table Surveying
Cartographers would climb with a tripod mounted with a sighting device and drawing board. When at the peak of the area's highest vantage point, they would draw out all of the features they could see. -
Aerial Photography
A cartographer would fly to a very high point and take aerial photos using new technology called a radar. When they landed they would draw it out. -
GIS Mapping
GIS is a system designed to capture, store, manipulate, analyze, manage, and present all types of geographical data. -
Satellite Mapping
Satellites used sensors to detect changes in the wavelength of light that is reflected from Earth's surface. This information was sent to computers on Earth and then processed into images. -
GPS Mapping
GPS was fully operational in 1994. It is a series of 24 satellites orbiting around the Earth, Constantly provides a digital map for direction.
