Results: 1 - 5 of 5
Oct 16, 2005
Map
… Geological Survey sand and gravel geology and resource data … the areal extent of sand and gravel deposits with aggregate … the material (ratio of sand to gravel and amount of fines) in the …
Dec 31, 1982
Open File Report
… veneers of sand and gravel, and some small localized … roadfill, and source of sand or gravel. Soils of map units 18, 19, …
Aug 24, 2011
Map
… the areal extent of sand and gravel deposits with aggregate … the material (ratio of sand to gravel and amount of fines) in the …
Dec 31, 1977
Earth Sciences Report