Items where Subject is "Mining"

6 October 1920

(1920) Iowa Coal, October 6, 1920. Iowa State University

1973

(1973) Iowa's Coal Mining Heritage including Supplementary Material for the Film The Last Pony Mine, 1973. Iowa State University

1977

(1977) Economics of Mining Coal in Iowa, 1977. Iowa State University

13 June 1978

(1978) Incorporating Orphaned Mine Spoil Reclamation into the Mining Plan by James B. Gulliford, June 13, 1978. Iowa State University

1982

(1982) Annual report: Iowa State Mining and Mineral Resources Research Institute, July 1, 1981 - June 10, 1982, 1982. Iowa State University

6 May 2008

(2008) Letter health consultation : Northwest States Portland Cement Company site, site, Mason City, Iowa EPA facility ID: IAD98053431 (2008). Public Health, Department of (Health and Human Services, Department of)

13 June 2008

(2008) Letter health consultation : Mason City coal gasification plant site, Mason City, Iowa EPA facility ID: IAD980969190 (2008). Public Health, Department of (Health and Human Services, Department of)