Boettcher, Arnold J.

1933

• Geology and ground-water resources in eastern Cheyenne and Kiowa Counties, Colorado
• Ground-water development in the high plains of Colorado / [by] Arnold J. Boettcher with a section on Chemical quality of the ground water by Robert Brennan
• Ground-water resources in the Libby area, northwestern Montana
• Water resources of the Clark Fork basin upstream from St. Regis, Montana
• Water-level records for the northern High Plains of Colorado