Results: 1 - 3 of 3
Dec 31, 1988
Open File Report
… characteristics of the sand and gravel resources. The study area is … and final assessment. Sand and gravel is limited in the area. Most … sand. Major sand and gravel deposits currently exploited …
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 …
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 …