Results: 1 - 6 of 6
Dec 31, 1980
Open File Report
… … An evaluation of the sand and gravel resources of the … 1978 to 1980 as a part of the sand and gravel inventory program … of 688 testholes, delineated 198 sand and gravel deposits of varying …
Aug 17, 2011
Open File Report
Nov 16, 2008
Data
… layer, are attributed as sand and silt veneer or buried sand, as shown on the maps. 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) …
Dec 31, 1961
Earth Sciences Report
… domestic or farm supplies from sand and gravel within glacial …
Dec 31, 1976
Open File Report