Bituminous coal and lignite mine openings and closings in the continental United States, 1970,1971, & 1972
By: prepared in the Division of Fossil Fuels, Bureau of Mines, U.S. Dept. of Interior.
Contributors: United States. Division of Fossil Fuels
Series: Mineral industry surveys
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1973
Place of publication: Washington
Language: eng
Number of pages: 17
Subjects: Bituminous coal -- United States -- Statistics.; Lignite -- United States -- Statistics.; Mineral industries.
Genres: Statistics.
Notes: Cover title.

"November 1973."