Blasting for abandoned mine land reclamation
Subtitle: closure of individual subsidence features and erratic, undocumented underground coal mine workings
By: Calder & Workman, Inc
Contributors: United States. Bureau of Mines
Series: A mining research contract report for the Abandoned Mine Lands Program; [OFR -- 31-91]; Mining research contract report; Open file report (United States. Bureau of Mines) -- 31-91
Publisher: Bureau of Mines, U.S. Dept. of the Interior
Published: 1991
Place of publication: [Washington, D.C.]
Language: eng
Format: Microform
Subjects: Blasting; Reclamation of land; Abandoned coal mines -- Environmental aspects
Notes: Distributed to depository libraries in microfiche

Shipping list no.: 94-0583-M

Microfiche. [Washington, D.C.] : Supt. of Docs., U.S. G.P.O., [1994] 6 microfiches