February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index

Archaeologist Steve Cassells details the prehistory of Colorado from the Paleo-Indian mammoth and bison hunters through the Archaic, Fremont, and Plains Woodland peoples to the Anasazi of the southwest and the historic Utes and Plains Indians. The author draws on unpublished reports, personal communications, and echaustive research in the printed literature to make this a book in which specialists will find new and exciting material. Significant sites from every cultural stage and every part of the state are examined, and an "Archaeological Scrapbook" presents thumbnail sketches of many of the colorful and significant archaeologists who have influenced the development of the science in the state.

This document concerns the prehistory of the Northern Colorado Basin. Its purpose is to provide a brief culture history framework, present and evaluate models of prehistoric behaviors, and provide direction for future archaeological investigations.