HEADWATERS ECONOMICS GEOGRAPHIC DATA LIBRARY DOCUMENTATION TITLE: Geodataset Name: NAmer_FrontierForests Geodataset Type: SHAPE Geodataset Feature: POLYGON GENERAL DESCRIPTION: This dataset provides the boundaries of frontier forests, the last remaining large areas of forest remains. DATA SOURCE(S): World Resources Institute Scale of Original Source Maps: 1:1,000,000 Date of Original Source Maps: 1997 GEODATASET EXTENT: North America FEATURE ATTRIBUTE TABLES CODES AND VALUES: ITEM ITEM DESCRIPTION NA DATA LINEAGE SUMMARY: The dataset was provided by CommEn Space. Frontier Forests are defined in "The Last Frontier Forests: Ecosystems and Economies on the Edge." as being primarily forested; of sufficient size to support viable populations of the full range of indigenous species associated with that particular forest ecosystem given periodic natural disturbance episodes; and exhibiting a structure and composition shaped largely by natural events, as well as by limited human disturbance from traditional activities. Frontier forests are relatively unmanaged, are home to most if not all of the species associated with that ecosystem type, are dominated by indigenous tree species associated with that ecosystem type, and are characterized by mosaics of forest patches representing a range of seral stages, in areas where such landscape heterogeneity would be expected to occur under natural conditions. MAP PROJECTION PARAMETERS PROJECTION ALBERS CONICAL EQUAL AREA DATUM NAD83 UNITS METERS SPHEROID GRS1980 PARAMETERS 1st standard parallel 29 30 0.000 2nd standard parallel 45 30 0.000 central meridian -96 00 0.000 latitude of projection's origin 37 30 0.000 false easting (meters) 0.00000 false northing (meters) 0.00000 DATA SOURCES CONTACT(S): Name: World Resources Institute Abbr. Name: WRI Address: 10 G Street, NE Suite 800 Washington D.C. 20002 Web site: www.globalforestwatch.org Phone: 202-729-7600 Fax: 202-729-7686 Contact: Tyson Walker Email: tysonw@wri.org; gfw@wri.org HEADWATERS ECONOMICS CONTACT: Name: Headwaters Economics Geographic Data Library Abbr. Name: HEGDL Address: Headwaters Economics 566 Highland St. Helena, Montana 59601 Web site: http://www.headwaterseconomics.org Contact Person: Patty Gude Phone: (406)599-7425 Email: patty@headwaterseconomics.org