Final Report on the Mid-plains Division of the Artesian and Underflow Investigation Between the Ninety-seventh Meridian of Longitude West of Greenwich and the Foothills of the Rocky Mountains.J. W. Gregory1893
A Survey of Economic Data of the Eastern Rocky Mountain Region, Mimeographed for Private Distribution by the Rocky Mountain University Research Council; Derived in Large Part from an Unpublished Study Prepared by the U.S. Dept. of Commerce, Entitled "Market Guide to the West Mid-continent."Rocky Mountain university research council.1933
Rocky Mountain Region, Mid-Continent Region, Great Lakes RegionUnited States. Office of Personnel Management1982
