It was however among the last to be explored, as it required aircraft in combination with ships to undertake systematic exploration.
Modern systematic exploration began in 1958 with the New Jersey caver Russell Gurnee.
But the four long lines of kurgans, at least 70 clearly visible, invited more systematic exploration.
However, Great Britain was the first European power to command the systematic exploration of the region.
Systematic exploration of the passageways began in the late 1950s and has continued to the present day.
"The funds raised will help the company further develop through the systematic exploration of its license areas," Mr Betts said.
He was a leading light on the Society's field trips which ranged over the whole of Britain and amounted to a systematic exploration of our lichens.
In 1733 a French geographer, Jean-Baptiste Bourguignon d'Arville, compiled the first map of Tibet and the Himalayan range based on systematic exploration.
Various navigators traversed the area, but no systematic exploration was attempted until the British Admiralty undertook a thorough survey of the entire archipelago between 1826 and 1836.
The first systematic exploration of freezing living tissue was carried out by Basile Luyet, a French-born Jesuit priest who conducted the first experiments with frogs' hearts in the 1930's in Wisconsin.
World-renowned for his development of a rapid, automated procedure for synthesizing peptides, Dr. Merrifield has been credited with making possible the systematic exploration of the structural basis of the activity of enzymes, hormones and antibodies.
