Skip to main content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

USFS Logo Research Data Archive

*To download images in addition to list, filter to 100 images or fewer.
Displaying items 1 - 20 of 24
10 | 20 | 50 per page
two 24'' aspen with old cankers stemming from old wounds
more info/bigger image
Collection: RMRS Archive Images
Keywords: canker
forest pathology
Organisms: aspen
Location: Near Beaver Lake Campground, Quray Dist., San Juan N.F.; CO; United States
Description: two 24'' aspen with old cankers stemming from old wounds
Date: 6/1960

Rough-bark canker of aspen
more info/bigger image
Collection: RMRS Archive Images
Keywords: canker
forest pathology
Organisms: aspen
Location: Near Aspen G.S., Mancos Dist., San Juan N.F.; CO; United States
Description: Rough-bark canker of aspen
Date: 6/1960

Tree #2, rough-bark canker 8-10'' before peeling
more info/bigger image
Collection: RMRS Archive Images
Keywords: canker
forest pathology
Organisms: aspen
Location: Near Aspen G.S., Mancos Dist., San Juan N.F.; CO; United States
Description: Tree #2, rough-bark canker 8-10'' before peeling
Date: 6/1960

Tree #2, rough-bark canker 8-10'' after peeling
more info/bigger image
Collection: RMRS Archive Images
Keywords: canker
forest pathology
Organisms: aspen
Location: Near Aspen G.S., Mancos Dist., San Juan N.F.; CO; United States
Description: Tree #2, rough-bark canker 8-10'' after peeling
Date: 6/1960

14'' aspen girdled by sooty-bark canker
more info/bigger image
Collection: RMRS Archive Images
Keywords: canker
forest pathology
Organisms: aspen
Location: Near Jackson Guard Station, San Juan N.F.; CO; United States
Description: 14'' aspen girdled by sooty-bark canker
Date: 6/1960

Sooty-bark canker on 18'' aspen
more info/bigger image
Collection: RMRS Archive Images
Keywords: canker
forest pathology
Organisms: aspen
Location: Near Beaver Lake Campground, Quray Dist., San Juan N.F.; CO; United States
Description: Sooty-bark canker on 18'' aspen
Date: 6/1960

Over 60% of the stand infected with sooty-bark cankers
more info/bigger image
Collection: RMRS Archive Images
Keywords: canker
forest pathology
Organisms: aspen
Location: Near Jackson Guard Station, San Juan N.F.; CO; United States
Description: Over 60% of the stand infected with sooty-bark cankers
Date: 6/1960

Unknown basal damage of aspen
more info/bigger image
Collection: RMRS Archive Images
Keywords: forest pathology
Organisms: aspen
Location: San Juan N.F.; CO; United States
Description: Unknown basal damage of aspen
Date: 7/1958

Tree 288 (left) with dead rust brooms on the bole at 94' to 105', and dead top (old) 94' to 121'
more info/bigger image
Collection: RMRS Archive Images
Keywords: spruce defect study
forest pathology
Organisms: spruce
Location: San Juan N.F.; CO; United States
Description: Tree 288 (left) with dead rust brooms on the bole at 94' to 105', and dead top (old) 94' to 121'
Date: 7/1958

Tree 222 cross section at 1' with P. nigrolimitatus sporophore and decay
more info/bigger image
Collection: RMRS Archive Images
Keywords: decay
spruce defect study
sporophore
forest pathology
Organisms: spruce
Location: San Juan N.F.; CO; United States
Description: Tree 222 cross section at 1' with P. nigrolimitatus sporophore and decay
Date: 7/1958

Tree 276 with live and dead rust brooms in old dead top
more info/bigger image
Collection: RMRS Archive Images
Keywords: spruce defect study
forest pathology
Organisms: spruce
Location: San Juan N.F.; CO; United States
Description: Tree 276 with live and dead rust brooms in old dead top
Date: 7/1958

Tree 280 with punk knots 1' to 12'. live rust brooms 48' to 52', dead branches and dead rust broom on bole at 66', and 4'' wide dry faced 60 yr. old wound 80' to 87'
more info/bigger image
Collection: RMRS Archive Images
Keywords: spruce defect study
forest pathology
Organisms: spruce
Location: San Juan N.F.
Description: Tree 280 with punk knots 1' to 12'. live rust brooms 48' to 52', dead branches and dead rust broom on bole at 66', and 4'' wide dry faced 60 yr. old wound 80' to 87'
Date: 7/1958

Tree 244 with dead top
more info/bigger image
Collection: RMRS Archive Images
Keywords: spruce defect study
forest pathology
Organisms: spruce
Location: San Juan N.F.
Description: Tree 244 with dead top
Date: 7/1958

Tree 289 cross section at 85' showing brown flecky trunk decay in dead rust broom and entering trunk of tree
more info/bigger image
Collection: RMRS Archive Images
Keywords: decay
spruce defect study
forest pathology
Organisms: spruce
Location: San Juan N.F.; CO; United States
Description: Tree 289 cross section at 85' showing brown flecky trunk decay in dead rust broom and entering trunk of tree
Date: 7/1958

Tree 222 with old dead top and dead branches in mid crown
more info/bigger image
Collection: RMRS Archive Images
Keywords: spruce defect study
forest pathology
Organisms: spruce
Location: San Juan N.F.; CO; United States
Description: Tree 222 with old dead top and dead branches in mid crown
Date: 7/1958

Tree 237 with live wide dicot fork
more info/bigger image
Collection: RMRS Archive Images
Keywords: spruce defect study
forest pathology
Organisms: spruce
Location: San Juan N.F.; CO; United States
Description: Tree 237 with live wide dicot fork
Date: 7/1958

Tree 236 with old dead top and dead rust brooms at 69'
more info/bigger image
Collection: RMRS Archive Images
Keywords: spruce defect study
forest pathology
Organisms: spruce
Location: San Juan N.F.; CO; United States
Description: Tree 236 with old dead top and dead rust brooms at 69'
Date: 7/1958

Telephoto shot of tree 237 with wide dicot fork
more info/bigger image
Collection: RMRS Archive Images
Keywords: spruce defect study
forest pathology
Organisms: spruce
Location: San Juan N.F.; CO; United States
Description: Telephoto shot of tree 237 with wide dicot fork
Date: 7/1958

Tree 245 with recent dead top 78' to 88'
more info/bigger image
Collection: RMRS Archive Images
Keywords: spruce defect study
forest pathology
Organisms: spruce
Location: San Juan N.F.; CO; United States
Description: Tree 245 with recent dead top 78' to 88'
Date: 7/1958

Tree 267 with live rust brooms and dead rust brooms at base of dead fork
more info/bigger image
Collection: RMRS Archive Images
Keywords: spruce defect study
forest pathology
Organisms: spruce
Location: San Juan N.F.; CO; United States
Description: Tree 267 with live rust brooms and dead rust brooms at base of dead fork
Date: 7/1958