Region 6 interim old growth definition for Douglas-fir series, grand fir/white fir series, interior Douglas fir series, Lodgepole pine series, Pacific silver fir series, Ponderosa pine series, Port-Orford-cedar and tanoak (redwood) series, subalpine fir series, Western hemlock series.
Contributors: United States. Forest Service. Timber Management.
Publisher: Timber Management Group, USDA Forest Service
Published: 1993
Place of publication: Portland, Or
Language: eng
Subjects: Old growth forests -- Northwest, Pacific; Conifers -- Northwest, Pacific
Other titles: Interim old growth definition.
Notes: "June 1993."