"After the Gold Rush" is a song written, composed, and performed by Neil Young and is the title song from the 1970 album of the same name. In addition to After the Gold Rush, it also appears on Decade, Greatest Hits, and Live Rust.

The song considers environmental concerns using the form of a dream vision. The three verses move forward in time from the past, to the present, and, finally, the future. In addition to Young's vocals, two instruments are used in the song: a piano and a flugelhorn. The flugelhorn solo in the middle of the song is often replaced by a harmonica solo by Young in live performances. The line "Look at Mother Nature on the run / In the 1970s" has been amended by Young in concert over the decades and is currently sung as "Look at Mother Nature on the run / in the 21st century."

The song has been covered numerous times. In 1973, it was interpreted by Prelude, whose version was a top 40 hit all over the globe, especially the United Kingdom where it re-charted in the Top 40 in 1982. Other versions have been performed by artists such as Thom Yorke, k.d. lang, The Flaming Lips, The King's Singers, Michael Hedges, Nena, and Natalie Merchant. Linda Ronstadt, Dolly Parton, and Emmylou Harris included it on their smash Trio II album in 1999 and were awarded a Grammy for their version. (Parton also released a solo version of the song in 1996, though her version altered the line "I felt like getting high" to "I felt like I could cry" with the permission of Neil Young.) During Radiohead's 2003 and 2012 world tours, Thom Yorke occasionally played this song solo, usually segueing into "Everything in Its Right Place." Patti Smith included it on her 2012 album, Banga. The song has also been covered in live shows by Tori Amos, Dave Matthews, Neil Finn during Crowded House's 2007 tour of the United States, and by Nana Mouskouri during her 1970s BBC show.

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