Rocky Hartberg Productions
 Rocky Hartberg Productions is a comic book production company owned and operated by Rocky Hartberg. It is located in Langford South Dakota. Beginning in 1976 Rocky Hartberg Productions produced a number of underground comics including Cole Black Comix Lonesome Cowboy Comix White Knight Comix Cole Black and Cole Black Comics. Obviously many of their titles were devoted to hard-boiled detective Cole Black. In early-2007 publication of Cole Black Comics resumed by Boardman Books (USA).