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    This document describes the Landtype Associations that have been developed for National Forest land in the Northern Region. Map units were delineated at a scale of 1:100,000 and are differentiated by dominant categories of landforms and geologic materials. Descriptions of the seventy one Landtype Associations were prepared for the nineteen Sections that occur in Region 1 using the National Hierarchy of Ecological Units. A total of 40,392,207 acres were mapped. Examples of applications using landtype associations are also presented. These landtype associations were developed primarily for use in landscape and watershed characterization. A geo-referenced, electronic version of the mapping was prepared as a component of this mapping project.

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    Ford, Gary L.; Maynard, C. Lee; Nesser, John A.; Page-Dumroese, Deborah S. 1998. Landtype associations of the Northern Region 1997: A first approximation. Gen. Tech. Rep. RMRS-GTR-2. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 516 p. [CD-ROM].


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    landtype associations, National Hierarchy of Ecological Units, landforms, geologic materials

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