Results: 1 - 3 of 3
Dec 31, 1978
Earth Sciences Report
… … This report, The Sand and Gravel Resources of the … of reports which discuss the sand and gravel resources of the … to provide information on the sand and gravel resources of …
Jul 15, 2006
Data
Dec 31, 1981
Bulletin
… with a change from a gravel to a sand bed, which constitutes the … type of reach observed. The sand hows little change in size … in the range from coarse sand to granules. This deficiency …