Manuscripts
Oro Grande Technical Attachments: Created Exclusively for the 2010 California Department of Conservation Reclamation Award Program, Vulcan Materials Company, Western Division
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Projects -- The Cajon Creek Habitat Conservation Area by Vulcan Materials Company, Western Division, (2011)
Manuscripts
Included: DVD
mssSprague2
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Booklets -- Before and After, Extraordinary Reclamation Projects by Vulcan Materials Company, [undated]
Manuscripts
The first series consists of material related to Douglas W. Sprague's tenure as a member and executive officer of the California State Mining and Geology Board from 1976 through 1985.
mssSprague2
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Projects -- Vulcan Materials Company's Morongo Project "A Case Study of Excellence in Reclamation" presented by RGP, Planning & Development Services, (2003)
Manuscripts
Included: Correspondence
mssSprague2
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Booklets -- The History of the Los Angeles Aggregate Industry: A Century in Review a publication of Vulcan Materials, CalMat Division, (1998)
Manuscripts
The first series consists of material related to Douglas W. Sprague's tenure as a member and executive officer of the California State Mining and Geology Board from 1976 through 1985.
mssSprague2
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Reports -- The Effectiveness of the California Surface Mining and Reclamation Act by Michael O'Hare, [undated]
Manuscripts
A [final] report to the California Legislative and Governor pursuant to Section 2774.6 of the Surface Mining and Reclamation Act
mssSprague2
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Sand and gravel industry; Reclamation projects
Manuscripts
The first series consists of material related to Douglas W. Sprague's tenure as a member and executive officer of the California State Mining and Geology Board from 1976 through 1985.
mssSprague2