Results: 1 - 3 of 3
Jan 10, 2012
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
… glaciofluvial sediments (gravel). Patches of thin Organic … roadfill, and source of sand or gravel. Soils of Map Units 1,2 and … can provide good sources of gravel. Careful study of the soil …
Jul 28, 2009
Map
… the areal extent of sand and gravel deposits with aggregate … the material (ratio of sand to gravel and amount of fines) in the …