| Collection: | Fort Valley Experimental Forest historical photographs |
| Keywords: | logging |
| Organisms: | engelmann spruce |
| Location: | Mt. Graham Experimental Forest; AZ; USA |
| Description: | Heavy stand of Engelmann spruce |
| Date: | 10/1931 |
| Collection: | Fort Valley Experimental Forest historical photographs |
| Keywords: | logging |
| Organisms: | engelmann spruce |
| Location: | Mt. Graham Experimental Forest; AZ; USA |
| Description: | Heavy stand of Engelmann spruce |
| Date: | 10/1931 |
| Collection: | Fort Valley Experimental Forest historical photographs |
| Keywords: | logging |
| Organisms: | engelmann spruce |
| Location: | Mt. Graham Experimental Forest; AZ; USA |
| Description: | Heavy stand of Engelmann spruce |
| Date: | 10/1931 |
| Collection: | Fort Valley Experimental Forest historical photographs |
| Organisms: | engelmann spruce |
| Location: | Mt. Graham Experimental Forest; AZ; USA |
| Description: | Heavy stand of Engelmann spruce |
| Date: | 10/1931 |
| Collection: | Fort Valley Experimental Forest historical photographs |
| Keywords: |
soil regeneration reproduction |
| Organisms: | engelmann spruce |
| Location: | Fort Valley Experimental Forest; AZ; USA |
| Description: | Oats grown in two soils from Engelmann spruce type |
| Date: | 09/14/1929 |
| Collection: | Fort Valley Experimental Forest historical photographs |
| Keywords: |
San Francisco Peaks seeding/planting |
| Organisms: |
engelmann spruce douglas fir |
| Location: | Coconino National Forest; AZ ; United States |
| Description: | A field nursery of Engelmann spruce and Douglas-fir |
| Date: | 12/1925 |
| Collection: | Fort Valley Experimental Forest historical photographs |
| Organisms: | engelmann spruce |
| Location: | Mt. Graham; AZ; United States |
| Description: | Stand of pure Engelmann spruce |
| Date: | 1925 |
| Collection: | Fort Valley Experimental Forest historical photographs |
| Keywords: |
San Francisco Peaks personnel |
| Organisms: | engelmann spruce |
| Location: | Coconino National Forest; AZ; United States |
| Description: | Pure stand of Engelmann spruce |
| Date: | 1925 |
| Collection: | Fort Valley Experimental Forest historical photographs |
| Keywords: | San Francisco Peaks |
| Organisms: | engelmann spruce |
| Location: | San Francisco Mountains; AZ; United States |
| Description: | Englemann spruce forest in San Francisco Mountains |
| Date: | 1925 |
| Collection: | Fort Valley Experimental Forest historical photographs |
| Keywords: |
soil seeding/planting |
| Organisms: | engelmann spruce |
| Location: | Fort Valley Experimental Forest; AZ; USA |
| Description: | Engelmann spruce transplants |
| Date: | 04/19/1920 |
| Collection: | Fort Valley Experimental Forest historical photographs |
| Keywords: |
San Francisco Peaks meteorological equipment meteorological studies elevational gradient meteorology study |
| Organisms: | engelmann spruce |
| Location: | Coconino National Forest; AZ; United States |
| Description: | mature Engelmann spruce forest on San Francisco Peaks |
| Date: | 1919 |
| Collection: | Fort Valley Experimental Forest historical photographs |
| Keywords: |
selective cutting San Francisco Peaks meteorological equipment regeneration elevational gradient meteorology study |
| Organisms: | engelmann spruce |
| Location: | Fort Valley Experimental Forest; AZ; United States |
| Description: | Weather Station on San Francisco Peaks |
| Date: | 1919 |
| Collection: | Fort Valley Experimental Forest historical photographs |
| Keywords: |
snow San Francisco Peaks meteorological equipment elevational gradient meteorology study |
| Organisms: | engelmann spruce |
| Location: | Coconino National Forest; AZ; USA |
| Description: | Engelmann Spruce planting site |
| Date: | 1919 |
| Collection: | Fort Valley Experimental Forest historical photographs |
| Keywords: | elevational gradient meteorology study |
| Organisms: | engelmann spruce |
| Location: | San Francisco Peaks; AZ; United States |
| Description: | Fort Valley elevational gradient meteorology study |
| Date: | 1918 |
| Collection: | Fort Valley Experimental Forest historical photographs |
| Keywords: |
personnel meteorological equipment period attire elevational gradient meteorology study |
| Organisms: | engelmann spruce |
| Location: | San Francisco Mountains; AZ; United States |
| Description: | timberline on San Francisco Peaks |
| Date: | 1918 |
| Collection: | Fort Valley Experimental Forest historical photographs |
| Keywords: | San Francisco Peaks |
| Organisms: | engelmann spruce |
| Location: | Coconino National Forest; AZ; United States |
| Description: | Near timberline on San Francisco Peaks |
| Date: | 1917 |
| Collection: | Fort Valley Experimental Forest historical photographs |
| Keywords: |
San Francisco Peaks meteorological equipment |
| Organisms: | engelmann spruce |
| Location: | Coconino National Forest; AZ; United States |
| Description: | Weather Station on San Francisco Peaks |
| Date: | 1917 |
| Collection: | Fort Valley Experimental Forest historical photographs |
| Keywords: | San Francisco Peaks |
| Organisms: | engelmann spruce |
| Location: | Coconino National Forest; AZ; United States |
| Description: | Mt. Agassiz |
| Date: | 09/13/1910 |
| Collection: | Fort Valley Experimental Forest historical photographs |
| Keywords: |
San Francisco Peaks personnel meteorological equipment elevational gradient meteorology study |
| Organisms: |
engelmann spruce douglas fir corkbark fir aspen |
| Location: | Fort Valley Experimental Forest |
| Description: | Douglas-fir station |
| Date: |
| Collection: | Fort Valley Experimental Forest historical photographs |
| Organisms: |
engelmann spruce corkbark fir |
| Location: | San Francisco Mountains; AZ; United States |
| Description: | Engelmann spruce and corkbard fir |
| Date: |