In addition to producing a formidable catalog of tunes, the two have built a reputation as social activists, with prominent roles in organizations including Honor The Earth, Women’s Action for New Directions and Rock The Vote.

These days Ray and Saliers are augmented by the team of bassist Clare Kenny, keyboardist Carol Isaacs and drummer Brady Blade, although they’ll perform as an acoustic duo for the first two shows of the tour, June 11 in Boston and June 12 in Hyannis, Mass.

The trek is scheduled to stretch through August 7, with double nights in several cities including Atlanta, San Diego and Denver. Additional dates are promised.