A. L Hornbaker

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1) 1972 summary of coal resources in Colorado

Author

Hornbaker, A. L

Series

Special publication volume 3

Pub. Date

1973.

2) 1975 summary of coal resources in Colorado

Author

Hornbaker, A. L

Series

Special publication volume 9

Pub. Date

1976.

3) Metal mining activity map of Colorado, excluding uranium and vanadium

Author

Hornbaker, A. L

Series

Map volume 10

Pub. Date

1978.

4) Metal mining activity map of Colorado and directory, 1984

Author

Hornbaker, A. L

Series

Map volume 24

Pub. Date

1984.

5) Geology and resource potential of strategic minerals in Colorado

Author

Schwochow, S. D

Series

Information volume 17

Pub. Date

1985.

6) Radioactive mineral occurrences of Colorado and bibliography

Author

Nelson-Moore, James L

Series

Bulletin volume 40

Pub. Date

1978.

7) Map of Colorado uranium and vanadium mining and milling activities

Author

Collier, James D

Series

Map volume 11

Pub. Date

1978.