This report describes the conceptual design of a regional information system, developed in support of the Denver Regional Council of Government's established comprehensive planning work program. It includes a discussion of system objectives, available data sources, recommended system content, software and system maintenance requirements, administrative staffing recommendations, funding sources and future expansion. The system is designed in a flexible, modular format, built around an initial structure of six computerized file-sets supplemented by a library of maps, reports and related non-computerized materials. (Author)