Arising" on June 7, 1969, inspired by the writings of 'the sleeping prophet' Edgar Cayce regarding the rediscovery of mythical Isle of Atlantis, while staying at the Beverly Rodeo Hotel in Beverly Hills, California.

[2] Bassist Noel Redding left the Jimi Hendrix Experience following a show on June 29, 1969, in Denver, Colorado, and afterwards "Valleys of Neptune" began to take more shape.

At the Hit Factory in New York City on September 6, 1969, Hendrix recorded the song with a full band.

[9] Hendrix died in September 1970, ultimately without completing "Valleys of Neptune" to his satisfaction.

The music video for "Valleys of Neptune", produced by String Theory Design, is centered around a 1957 painting by Hendrix used as the cover for the single.