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USFS Logo Research Data Archive
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White spruce-paper birch forest about 120 years old. The spruce with the aluminum holder at the base is 21.3 inches d.b.h. On well-drained land near Kasilof, Kenai Peninsula.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: plant ecology: ecosystems
vegetation types, ecotypes
Location: Alaska; Kenai Peninsula; Kasilof
Description: White spruce-paper birch forest about 120 years old. The spruce with the aluminum holder at the base is 21.3 inches d.b.h. On well-drained land near Kasilof, Kenai Peninsula.
Date: 1957

A cross section of 6-inch d.b.h. white spruce showing 24 annual rings. The ring width shows remarkably good growth. Vicinity of Kasilof Kenai Peninsula, 1949. Used as illustration, Figure 3, Pg. 8, U.S.D.A Tech Bull 1133, 1956.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: forest products and their utilization
timber manufacturing industries and products
uses of wood
structure
identification
growth rings
Location: Alaska; Kasilof
Description: A cross section of 6-inch d.b.h. white spruce showing 24 annual rings. The ring width shows remarkably good growth. Vicinity of Kasilof Kenai Peninsula, 1949. Used as illustration, Figure 3, Pg. 8, U.S.D.A Tech Bull 1133, 1956.
Date: 1956