Title:

Mapped forest resources for Washington and Oregon, from a 1930s survey

Author(s):

Harrington, Constance A.

Publication Year:

2023

How to Cite:

These data were collected using funding from the U.S. Government and can be used without additional permissions or fees. If you use these data in a publication, presentation, or other research product please use the following citation:

Harrington, Constance A. 2023. Mapped forest resources for Washington and Oregon, from a 1930s survey. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2023-0064

Abstract:

Forest resources in Washington and Oregon were surveyed in the 1930s by employees of the USDA Forest Service, Pacific Northwest Forest Experiment Station. As part of this process, forest cover maps were created on paper at an original scale of 1:253,440. Forest and land cover types recorded include classifications such as: agricultural, balsam fir mountain hemlock, cedar-redwood, deforested burns, Douglas-fir, hardwood, juniper, lodgepole pine, non-forest pine mix, ponderosa pine, recent cutover, spruce-hemlock, subalpine and non-commercial, water, etc. An additional subcategory classification is also provided which gives additional insight into tree size classes for conifers or species group for hardwoods. These forest and land cover types are provided as both a shapefile and geopackage for Washington and Oregon combined.

Keywords:

farming; biota; boundaries; Inventory, Monitoring, & Analysis; forest survey; forest cover maps; Douglas-fir region; ponderosa pine region; Washington; Oregon

Related publications:

• Harrington, Constance A. (comp.). 2003. The 1930s survey of forest resources in Washington and Oregon. General Technical Report. PNW-GTR-584. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 123 p. plus CD-ROM. https://doi.org/10.2737/PNW-GTR-584

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