A new addition to the collected archive of Phish concerts has been revealed, as most of the band’s summer 1988 Colorado run, which included four shows from July 29 through August 5, is now available in newly surfaced recordings, as Phish.net announced recently.

Cuts from the ’88 run, the band’s first in Colorado, were previously released as part of Phish’s Colorado ’88 live album, was released in 2006, though full recordings of the shows have never been in circulation. The “new” shows come from Niel Ringstad, were taped by Mike Lynch and were transferred from Lynch’s analog masters by Jeff Goldberg.

The shows include the July 30, 1988 show that featured what came to be known as Phish’s “Jazz Odyssey” set, when Trey Anastasio hopped on drums for an improvised jazz first set while drummer Jon Fishman was temporarily absent.

Learn more about the recordings and get the download links here.