J. Harlen Bretz

1882 – 1981

• Caves of Illinois
• The Grand Coulee
• Caves of Missouri
• Glaciation of the Puget Sound region ..
• Earth sciences
• Geology of the Chicago region
• Alternative hypothesis for channeled scabland
• An incomplete genealogy of the family of John Bretz of Fairfield Co., Ohio
• Chicago area geologic maps
• Geomorphic history of the Ozarks of Missouri
• Physiographic studies in east Greenland
• The Channeled scabland of Eastern Washington