A Summary of mineral industry activities in Colorado, 1979
By: Colorado Division of Mines, Department of Natural Resources.
Contributors: Colorado. Division of Mines.
Publisher: The Division
Published: 1980
Place of publication: Denver, Colo. (1313 Sherman St., Denver 80203)
Language: eng
Subjects: Mineral industries -- Colorado -- Statistics.
Notes: "May 1, 1980"--Pt. 1, p. ii.
"June 15, 1980"--Pt. 2, p. 1.
Table of contents: title: pt. 1. Coal; title: pt. 2. Metal-nonmetal.