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| Collection: | Fort Valley Experimental Forest historical photographs |
| Keywords: |
erosion overgrazed range study |
| Organisms: | ponderosa pine |
| Location: | Tonto NF; AZ; USA |
| Description: | Ranger Study Plot |
| Date: | 10/29/1940 |
| Collection: | Fort Valley Experimental Forest historical photographs |
| Keywords: |
erosion range study |
| Organisms: | goats |
| Location: | Skull Valley; AZ; USA |
| Description: | goat range study |
| Date: | 04/21/1939 |
