In 1838, he arrived in southern Russia where he performed ethnographical research and geographical surveys.

He ordered the state's first geographical and topographical surveys.

There is also a core group of large companies that report every month and a geographical survey.

Cowan also made specific geographical surveys of the area, and he discovered the unique cryptoexplosion structure on which the mound is based.

The Vietnamese government conducted several geographical surveys of the islands in the 18th century.

This firm developed equipment and techniques for geographical surveys using low-flying aircraft.

These measurements form the backbone of the national geographical survey.

Dr. Clayton had correlated the results with known geographical surveys, and had proved beyond doubt the value of the information obtained.

Altitude or height is defined based on the context in which it is used (aviation, geometry, geographical survey, sport, and more).

These sensors are able to be used for geographical surveys to map the earth and look for oil and mineral deposits.