"The Workhorse Chronicles" is a DVD release by American progressive metal band Mastodon released on February 21, 2006 through Relapse Records and marks the band's final release through the company, before signing up to Warner Bros. Records.

The DVD is divided into 3 sections. The first is a documentary that traces the process of band's formation and also provides information about previous bands of individual members.

The second section consists of live performances recorded from year 2000 to 2005 including rare footage of the band in their initial form as a five-piece through to sold-out clubs worldwide. There are 28 recorded live performances in total.

The third section is a selection of music videos. It features the band's first 3 music videos: "March Of The Fire Ants", "Blood and Thunder", and "Iron Tusk". The video for "Seabeast" is not included on this release, even though it had been made at the time; the DVD went into pressing before it could to be included. The DVD was originally going to contain alternate videos for some songs (including "Battle At Sea" and "Seabeast") that focused entirely upon drummer Brann Dailor. However, for some unknown reason these "Drum-cam" videos were not included on the DVD.

Tracks 7-10 appears on their compilation album, Call of the Mastodon

Tracks 11-15 on their EP Lifesblood and "Call of the Mastodon"

Tracks 16-25 on their debut album, Remission

Tracks 26-33 on their second album, Leviathan

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