Year: | 1980 |
---|---|
Document Type: | USBI |
Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
SUDOC: | I 28.27: |
Series: | Information circular - Bureau of Mines ; |
Report Number: | 8823 |
Subjects: | Abandoned mined lands reclamation--Congresses |
Strip mining--Environmental aspects--Congresses | |
Coal mines and mining--Environmental aspects--Congresses | |
Link: | https://hdl.handle.net/2027/mdp.39015078462051 |