Concert poster, Poco and P.F.M., December 10, 1972, and Linda Ronstadt, December 17, 1972.University of Utah Archives: Musical Performances – Miscellaneous vertical files. J. Willard Marriott Library, University of Utah.
Stomp, featuring Hard Road, 1973. University of Utah Archives: Musical Performances – Miscellaneous vertical files. J. Willard Marriott Library, University of Utah. Holden Caulfield in concert, 1971. University of Utah Archives: Musical Performances – Miscellaneous vertical files. J. Willard Marriott Library, University of Utah.
U of U concert contract for Rocks & Gravel performance; Rocks & Gravel handbill, 1972. Bruce Roberts papers, 1966-2004. Special Collections, J. Willard Marriott Library, the University of Utah.Utah Liberation Front presents Rocks & Gravel and Holden Caulfield at the Union Ballroom, 1971. University of Utah Archives: Musical Performances – Miscellaneous vertical files. J. Willard Marriott Library, University of Utah. Rocks & Gravel poster, 1972. Bruce Roberts papers, 1966-2004. Special Collections, J. Willard Marriott Library, the University of Utah. Cold Blood with Stone Ground, University of Utah Ballroom, 1972. University of Utah Archives: Musical Performances – Miscellaneous vertical files. J. Willard Marriott Library, University of Utah.
