Results: 1 - 2 of 2
Dec 31, 1980
Open File Report
… … An evaluation of the sand and gravel resources of the Calgary … 1980 as a part of the sand and gravel inventory program undertaken … delineated 198 sand and gravel deposits of varying quality …
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 …