 In 1970 Page and Plant retired to Bron @-@ Yr @-@ Aur , a remote cottage in Wales , to commence work on their third album , Led Zeppelin III . The result was a more acoustic style that was strongly influenced by folk and Celtic music , and showcased the band 's versatility . The album 's rich acoustic sound initially received mixed reactions , with critics and fans surprised at the turn from the primarily electric arrangements of the first two albums , further fuelling the band 's hostility to the musical press . It reached number one in the UK and US charts , but its stay would be the shortest of their first five albums . The album 's opening track , " Immigrant Song " , was released as a US single in November 1970 against the band 's wishes , reaching the top twenty on the Billboard chart . 
