These strip-mining spoil piles are about 20 years old, 06/1973
| Uploaded by | U.S. National Archives |
|---|---|
| License | No known copyright restrictions |
| Comments | 0 |
| Favorites | 5 |
| Views | 6,595 |
| Date taken | 1973-06 |
| Date uploaded | 2012-04-10 |
| Tags | usnationalarchives, documerica, environmentalprotectionagency, boydnorton, nara:arcid=549184 |
| Visibility | public |