Johnny Cash at San Quentin is the 31st overall album and second live album by American singer-songwriter Johnny Cash, recorded live at San Quentin State Prison on February 24, 1969, and released on June 16 of that same year. The concert was filmed by Granada Television, produced and directed by Michael Darlow. The album was the second in Cash's conceptual series of live prison albums that also included At Folsom Prison (1968), På Österåker (1973), and A Concert Behind Prison Walls (2003). No. 1 on the Billboard 200 for 4 weeks, from the issue of August 23, 1969. Wiki link