Inventoried Roadless Areas

Last updated on 7/1/2011 12:52:12 PM.


This data set contains the USDA Forest Service Inventoried Roadless Areas (IRAs) for the lower 48 states, Puerto Rico, and Alaska. IRAs are based on completed forest plans, forest plans in revision where the agency has established an inventory (this information should be available in Appendix C of most forest plans), or other assessments that are completed and adopted by the agency.

Data Input

The IRA data displayed in WFDSS were obtained from the USDA Forest Service Geospatial Service and Technology Center. These data were originally submitted to GSTC by all national forests through their regional offices for the forest service’s Roadless Area Conservation Initiative. Minor edits were performed on the data to ensure a consistent format. The attributes of the source data were edited so that the IRA and Agency names were the only two attribute fields in the final version. These edits did not impact the original integrity of the data, and no polygons or attribute associations were changed, removed, or added.

Caution: The data displayed in WFDSS are intended for STRATEGIC USE ONLY. Always verify the positional accuracy of the data with local knowledge.


User needs to exercise caution regarding the spatial accuracy of these data. The source scales can vary. External features cannot be expected to align. The National Forest Planning Record Documents(Appendix C), other assessments adopted by the USDA Forest Service, or RARE II documents, are ultimately the official version of inventoried roadless areas.

Data Information


USDA Forest Service - Geospatial Service and Technology Center





Data Download:

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Inventoried Roadless GIS Team Contacts

The WFDSS application is "data rich". It requires data which is spatially oriented and graphically displays information to support wildland fire and other natural resource decisions. Due to the type and number of interagency spatial data sets required in April 2009 an interagency GIS Team was formed to provide data support for WFDSS. This Team is responsible for acquiring, consolidating, and validating their agency spatial and tabular data. In addition this team developed and maintained communications among local, regional, and national agency personnel to improve the collection process and provide explicit guidance on data needs. The members of the WFDSS GIS Team are:

Table 1: WFDSS GIS Team Contacts

WFDSS GIS Team Contacts

Andrew Bailey WFM RD&A Data Manager
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Ben Butler
WFM RD&A GIS Specialist
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Jill Kuenzi
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Joseph Kafka
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Cameron Tongier
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Skip Edel
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Dianna Sampson
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Kristy Swartz BLM-NIFC 208.387.5326 send email

Jennifer L. Jenkins BLM-Alaska Fire Service 907.356.5587 send email