East Branch Grand Calumet River / Lake Michigan / Grand Calumet River / Calumet aquifer / /
Organization
Chief U.S. Geological Survey Water Resources Division / Indiana Department of Environmental Management / Federal Center Denver / INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT U.S. GEOLOGICAL SURVEY Water-Resources Investigations Report / U.S. DEPARTMENT OF THE INTERIOR / /
Person
RICHARD F. DUWELIUS / Shaun Austad / Gary Works / Gordon P. Eaton / Roger Koelpin / /
Position
Director For additional information / transducer and data logger / Secretary U.S. GEOLOGICAL SURVEY / Acknowledgments The author / /
ProvinceOrState
Northern Lake County / Indiana / Lake County / Colorado / Michigan / /