There are many types of land surveying, employed for different purposes and using different techniques.

An archaeological field survey is an assessment of archaeological sites or finds, where their locations are plotted in a landscape. This can be done using a number of methods such as remote sensing, geophysical surveying, GPS, GIS and aerial photography, or perhaps even literary resources. Laser surveying can produce 3D computerised models of artifacts.

An ‘as-built’ survey is carri...