Boyle Engineering Corporation was retained by the State of Colorado Department of Law to perform agronomic studies to develop data needed to support the State of Colorado's position in the adjudication of reserved water rights on selected lands within the Southern Ute and Ute Mountain Ute Indian Reservations located in southwest Colorado. The overall objective of the Agronomic Studies is to evaluate the ability of these lands to produce economic yields of crops judged suitable for production under site conditions. This evaluation includes investigations to determine the suitability of natural resources and climatic conditions for crop production and the impact of these factors on agronomic considerations such as land development and crop cultural requirements The results of the Agronomic Study will be used by agricultural economists to develop estimates of crop production costs and returns that reflect prevailing natural resource and climatic conditions.