The report was prepared in response to a legislative request contained in the 1985/86 budget act. The exact nature of the request is reprinted on page XX. The report has been divided into two parts. This, the first part, presents the results of our research that is relevant to the charge by the legislature. The second part, bound separately, is titled Analysis, Conclusion, and recommendations to Accompany A Map and Record Investigation of Historical Sites Along the Sacramento River.