A brief history of library development in Colorado is followed by the outline of a plan which delineates four network programs: materials selection, interlibrary loan, reference/information, and communications. Though these programs are interrelated in numerous ways, they are considered here one by one. For each program, the purpose and need, the current status, and the tasks needed for development are discussed. Following each discussion is a summary chart listing objectives, tasks, and a variety of considerations for each task. The cooperative roles to be played by the different libraries and agencies in Colorado are described, as well as the administration and governance of the network. A glossary of acronyms and initialisms, a brief bibliography, and two pages of definitions are included. (Author/JD)