Series 2552, Department of Natural Resources. Division of Water Resources Biennial reports, 1947-1978. Series 2559, Water and Power Board Administrative records, 1947-1956. Series 2561, Water and Power Board Correspondence, 1954-1955.

Series 5586, Department of Natural Resources. Division of Water Resources Water loans records, 1975- Series 11747, Department of Natural Resources. Division of Water Resources Water resources construction records, 1947-

Series 11746, Department of Natural Resources. Division of Water Resources Water project withdrawal records, 1947-

Series 22918, Governor Blood Colorado River correspondence, 1933-1940.

Series 165, Attorney General's Office Colorado River Commission case files, 1925-1963.

Series 20999, State Planning Board Water resources drainage basin reports, 1934-1938.

Series 1161, State Planning Board Administrative correspondence, 1934-1941. Series 1164, State Planning Board Administrative reports, 1934-1940.

Series 21003, State Planning Board Water resources correspondence, 1936-1940.

Series 861, Office of the State Engineer Dam and reservoir investigation and study records, 1934-1940.

Series 11748, Department of Natural Resources. Division of Water Resources Drought relief records, 1977-