Results: 1 - 7 of 7
Jul 31, 1980
Open File Report
… convenient supplies of sand and gravel. The greatest … lower Beaver valley (east of the Sand River) and many of the … W.A.D. and Fox, J.C. (1980): Sand and gravel resources of the …
Aug 30, 2009
Map
… map shows the areal extent of sand and gravel deposits with … of the material (ratio of sand to gravel and amount of fines) …
May 14, 2019
Map
May 14, 2019
Map
Oct 16, 2005
Map
Dec 31, 1983
Earth Sciences Report