Results: 1 - 3 of 3
Dec 31, 1974
Earth Sciences Report
… … Increasing demands for quality gravel prompted an investigation … 23 west of the fourth meridian and range 3 west of the fifth … tills, lacustrine materials and sand dunes which yield little or no …
Jan 23, 2020
Data
… are naturally occurring metallic and industrial minerals, diamonds, … coal, peat, humalite, and sand and gravel, as well as minerals that …
Dec 31, 1982
Open File Report
… within the overall study area, and collectively they comprise … glaciofluvial sediments (gravel). Patches of thin Organic … of roadfill, and source of sand or gravel. Soils of Map Units …