USDA Forest Service
  

Forest Inventory and Analysis National Program


 

Forest Inventory & Analysis
National Office
U.S. Forest Service
1400 Independence Ave., SW
Washington, D.C. 20250-0003

(703) 605-4177

United States Department of Agriculture Forest Service.

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Number of Live Trees 5 Inches and Larger per Acre of Timberland, 2007

Description

This map shows the spatial distribution of the nation’s live trees five inches and larger as a percentage of county timberland area. On average, by county, there are 120 trees, 5 inches and larger per acre of timberland.


Use this map only to identify broad spatial trends. At the time of assessment, data were not available for interior Alaska, the Pacific Basin, Puerto Rico, U.S. Virgin Islands, and a small number of counties in the lower 48 states.

 

Sources:

USDA Forest Service, 2007 RPA data, available at: http://www.fia.fs.fed.us/tools-data/

Distributor:

USDA Forest Service, Forest Inventory and Analysis.

Layers:

USDA Forest Service, 2007 RPA data and the National Atlas of the United States.

Definitions:


Timberland is defined as forest land capable of producing in excess of 20 cubic feet per acre per year and not legally withdrawn from timber production, with a minimum area classification of 1 acre.


 

Map 507 kb PDF

High resolution zipped
files for download:
Map 1,251 kb- PDF
Map 2,708 kb - JPG

USDA Forest Service
Last Modified: April 1, 2009


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