Annual Report for ... with Accompanying Papers |
Other editions - View all
Common terms and phrases
Allamakee county arenaceous argillaceous Augusta Bertram bituminous blue bluffs boulders breccia brick buff building stone calcareous Carboniferous Cedar chert coal measures color compact considerable creek Cretaceous deposits dolomite drainage drift east erosion exposed exposure feet in thickness feet thick Fire clay flood plain formation fossiliferous fossils fragments Geol geological gravel grey hard hill inches Iowa irregular Kenwood Keokuk county Keosauqua kilns layers ledges lime loess lower Mahaska county miles mill mines Moines Montgomery county Mount Vernon North Skunk northeast occur Oneota Oneota limestone Oskaloosa Otis beds outcrops paha Peter sandstone Pleistocene portion quarry railway Red Oak region ridges rock Saint Croix Saint Croix sandstone Saint Louis Saint Peter Saint Peter sandstone sand seam seen Shale shaly Skunk river slope soil South Skunk river southeast strata streams surface thin tion township unconformity upper usually valley Waukon weathering yellow