Chandler, V.W.Jirsa, M.A.Ikola, R.J.2010-03-312010-03-311985https://hdl.handle.net/11299/59992Scale 1:250,000; this map supersedes Miscellaneous Map Series M-3, 1968.en-USM-056 Simple Bouguer gravity map of Minnesota, Hibbing sheetMap