Speleology to cave science in the world. The growth of speleology is directly linked with that of the sport of caving, both because of the stimulation of public interest and awareness, and the fact that most speleological field-work has been conducted by sport cavers. The creation of an accurate, detailed map is one of the most common technical activities undertaken within a cave. Cave maps, called "surveys", can be used to compare caves to each other by length, depth and volume, may reveal clues on speleogenesis, provide a spatial reference for further scientific study, and assist visitors with route-finding. Caves provide
French Federation of Speleology its intense activity and partly because of the production of numerous publications including the "Proceedings of the International Congress of 1953". At the general meeting of the CNS appointed 10 May 1958, Geo Marchand was designated to organise the 2nd National Congress of Speleology in Cahors in 1959, with the group , of which he was President. Three hundred cavers from the CNS and the SSF took part in the event, from 6–10 September 1959. It gave rise to the presentation of 26 papers and five different films and inspired in the participants a desire for unification. The year 1961