By the 1970s Geevor's sett covered an area of about three square miles and included Boscaswell Downs mine, Pendeen Consols and Levant mine. In 1985 the International Tin Council failed and there was a dramatic fall in the price of the metal. The mine struggled on for a few years, but closed in 1990, and the pumps were switched off in May 1991 allowing the workings to flood. The mine is not geologically exhausted of tin, but it is exhausted of tin that is recoverable economically.