Original 1st printing 14 x 22" concert poster for a Warner Brother Records-sponsored co-billing of Mother Earth (featuring Tracy Nelson) and the Doobie Brothers at Erie Speedway in Erie (Dacono), CO (near Denver) on 6/13/1971.

 Design by Dave Bhang, medium-thick flat cardboard stock poster (tour blank format with show imprint at bottom) is in used (B-) condition; tack holes in all four corners, a small chunk off missing paper out of the top left corner tip, a fairly pronounced horizontal center crease, a series of light moisture stains (including a large one on the reverse), a few thin horizontal bends, edge wear... this example was almost certainly taken down from public display at the time of the shows, more than likely from an outdoor/exposed area.

 Conditional issues aside, it is still an EXTREMELY uncommon (and pretty cool-looking) early-'70's concert poster from a small Colorado racetrack. This was the VERY first national tour for the Doobies.