Ordovician and older rocks of the Bayhorse Area, Custer County, Idaho /
Hobbs, S. W. (Samuel Warren), 1911.
Ordovician and older rocks of the Bayhorse Area, Custer County, Idaho / by S. W. Hobbs and W. H. Hays. - Denver : U. S. Geological Survey, 1990. - 40 p. ; 28 cm.
detailed descriptions and columnar sections of the major stratigraphic ...
89-600226
Geology, stratigraphic--Ordovician.
Geology--Idaho--Custer County.
Ordovician and older rocks of the Bayhorse Area, Custer County, Idaho / by S. W. Hobbs and W. H. Hays. - Denver : U. S. Geological Survey, 1990. - 40 p. ; 28 cm.
detailed descriptions and columnar sections of the major stratigraphic ...
89-600226
Geology, stratigraphic--Ordovician.
Geology--Idaho--Custer County.
