Original 1st printing 19 x 28" concert/event poster for the KFRC Magic Mountain Festival, held at Mount Tamalpais Outdoor Amphitheater in Marin County, CA from 6/3-4/1967. Bands/acts listed include: Jefferson Airplane, the Doors, the Byrds, the Seeds, Miracles, Wilson Pickett, Tim Hardin, Sparrow, Country Joe & the Fish, Mojo Men, Blues Magoos, Moby Grape, Loading Zone, Every Mother's Son and the Grass Roots (there were some lineup changes, including the addition of Captain Beefheart & the Magic Band (with Ry Cooder), Blackburn and Snow and several other acts) 

 Art by Stanley Mouse, image is featured in the Art of Rock on page 227 (plate 2.319).

 Medium-thick flat index stock poster is in decent/used (B/B- to B-) condition; there is an approximately 1" diagonal chunk of paper missing from the upper left corner tip, plus tack holes/creases/tiny bends in the other three corners, a 3" diagonal tear in the upper left margin, a pair of 2" tears in the top margin (above the "M" of "Magic"), numerous small stress creases/bends scattered throughout the image area, a series of small edge tears/creases scattered all around the outer margin area, a moderate amount of toning and a bit of subtle moisture warp to the paper... definitely a well-traveled example, but still mostly intact.

Check out original 8mm footage shot at the event HERE:

https://www.youtube.com/watch?v=G4GKFpXzy94