Original 1st printing 17&1/2 x 23&1/8" concert poster for "Mountain Aire '80", a two-day event featuring performances by the Doobie Brothers, Toto, Ambrosia and Huey Lewis & the News, held at Calaveras County Fairgrounds in Angels Camp, CA from 6/14-15/1980. 

 Design by Roger Labon Jackson, medium-thick glossy-coated index stock poster is in good/very good (B to B/B+) condition; there is a piece of clear tape in the top center margin, along with a bit of light handling wear/minor creasing, a set of tack holes (all four corners), a few thin scratches, pin-prick spots/surface indentations and tiny stress bends hiding within the image area and a few semi-camouflaged (mostly visible on the reverse side) hairline-thin diagonal bends scattered around the outer margin area, otherwise OK.

 Nice-looking early-'80's multi-act poster from the Yacht Rock era.