Description: Originator: USDA ForestService - Geospatial Service and Technology Center (GSTC)Publication_Date:20000915, Updated 20030107, Updated 20030627, Updated 20080320, Updated 20120504, Updated 20120507Title: National Inventoried Roadless Areas (2001)Edition: Final, Edited20030107, Edited 20030627, Edited 20080320, Edited 20120504, Edited 20120507Geospatial_Data_Presentation_Form: File Geodatabase Feature ClassPublication_Place: Salt Lake City, UTPublisher: USDA ForestService - GSTCAbstract:This dataset contains the Inventoried Roadless Areas that were used in the Final Environmental Impact Statement for the 2001 Roadless Area Conservation Rule. The IRA data was originally submitted to GSTC by all national forests through their Regional Offices for the Forest Service’s Roadless Area Conservation Initiative. The data was consolidated at the GSTC and used in the Draft Environment Impact Statement. Between the draft and final stages of the Environmental Impact Statement, the data was updated by the forests to reflect any corrections to Inventoried Roadless Areas that were based on existing forest plans and administrative record. The data was also supplemented to include Special Designated Area information and to include Inventoried Roadless Areas within Special Designated Areas. The data was resubmitted to the GSTC on July 21, 2000 for consolidation and the completed coverage was used in the Roadless Area Conservation Final Environmental Impact Statement. On October 15, 2002, the Gallatin National Forest submitted a technical correction to the Inventoried Roadless Area GIS database. A portion of the original GIS data was corrected to match the 1999 IRA maps that are part of the forest administrative record. IRAs are based on completed forestplans, forest plans in revision where the agency has established an inventory(this information should be available in Appendix C of most forest plans), orother assessments that are completed and adopted by the agency. RARE II information was used in cases where aforest does not have a more current roadless inventory, which was established using RARE II information. Supplemental_Information:All of the following editingprocesses were performed using ARC/INFO software:The IRA data was originally submitted to GSTC on December 3, 1999 for the Draft Environmental Impact Statement. The data was submitted inARC/INFO export format (.e00), in most cases as individual national forest coverages,but in some cases together with other national forests. The original datasets submitted were derived from a variety of original source manuscripts, most IRA data had a scale of 1:24,000. Some datasets were of smaller scale, typically 1:126,720. Each national forest was originally compiledat a different time, from different source material, using various methods. Region 5 submitted one file,which included all national forests in that region (primarily the state ofCalifornia). In these instances,individual coverages were extracted by national forest administrative unit, andedited separately. All data was imported, projected to Albers and audited to check for INFO item consistency. Unnecessary features were removed and label errors removed. Each national forest dataset was spatially edgematched to a national forest boundary dataset compiled at GSTC for this purpose, and attribute information was added or corrected. It was GSTC's intent to change the original data as little as possible, altering the geometry only asnecessary to fit the National Forest Boundary coverage, and editing attributes only for consistency or where apparent errors occurred. Edgematched data to National Forest Boundary coverage by – 1) intersectedthe IRA and the NF boundary coverages using the UNION command with a fuzzytolerance of 1.5 map units (meters) 2) deleted polygons that extended beyond NF boundary as long as they appeared to be sliver polygons created by union 3) deleted/absorbed polygons that did not extend to NF boundary by eliminating all interior polygons less than 5 acres in size that had no IRA category value or NF ownership status using ELIMINATE command4) merged remaining polygon undershoots using theMERGE command via manual editing 5) conducted final quality assessment to check all work - this consisted of running acreage calculations for polygons before and after the edgematching process; all differences of 100 acres or greater were checked on screen and corrected if necessary; acreage calculations were run again after corrections were made to ensure there were no major changes (in some cases, changes were necessary after verifying with forest personnel that an error in the original data existed); a query was run on all coverages which resulted in a report showing frequency of polygons that had no ownership item and no IRA category - these were checked visually using hardcopy maps and phone calls to forests, if necessary, to verify what the polygons in question were; all IRA coverages were also checked visually on the screen to make sure there were no additional errors.Regional coverages were created by first appending the completed individual national forest IRA coverages into administrative regional coverages, using the APPEND command with the polygon option. This resulted in seven regional coverages for Regions: 1 (Northern), 2 (Rocky Mountain),3 (Southwestern), 4 (Intermountain), 5 (Pacific Southwest), 6 (Pacific Northwest), 8 (Southern), and 9 (Eastern). These seven regional coverages were then appended into the national coverage, again, using the APPEND command.The resulting national coverage was automatically edited, using the CLEAN command, with a fuzzy tolerance of 1.5meters. This removed geometric errors,and rebuilt topology. The coverage was then reprojected from Albers to decimal degrees for consistency with all other coverages used for analysis work. Between the draft and final stages of the Environmental Impact Statement, the data was updated by the forests toreflect any corrections to Inventoried Roadless Areas that were based on their existing forest plan. The data was also updated to include Special Designated Area information and to include Inventoried Roadless Areas within Special Designated Areas. After these updates were made the data was resubmitted to the GSTC on July 21, 2000 for consolidation.The final consolidation of the national IRA coverage was accomplished at the GSTC with the benefit of having one representative from each region to assist with quality control. All the completed regions were appended together into the national coverage and reprojected from Albers to decimal degrees for analysis and display in the Roadless Area Conservation Environmental Impact Statement. The IRAs only were selected from national coverage to make this dataset.On January 7, 2003, a technical correction to theIRA GIS data was performed by GSTC on behalf of the Gallatin National Forest. The technical correction complies with direction described in the Roadless Area Conservation Rule 294.11 and InterimDirective 1920-2001-1 section 1925.05.On June 27, 2003, a technical correction to the IRA GIS data was performed by GSTC on behalf of the Santa FeNational Forest. A portion of the original GIS data was corrected to match the IRA maps that are part of the forest administrative record. The technical correction complies with direction described in the Roadless Area ConservationRule 294.11 and Interim Directive 1920-2001-1 section 1925.05. The correction removes roadless attributes from all polygons that comprise the Jemez NRA andEast Jemez NWSR so that these two special designated areas are no longer shownas inventoried roadless areas. These areas were incorrectly shown as inventoried roadless areas.On August 2, 2004, a technical correction to the Blue Mountain Roadless Area was performed by GSTC on behalf of the Manti-La Sal National Forestto more accurately reflect the 1983 Roadless Area Reevaluation as shown in the1986 Planning Record. The Blue Mountain IRA boundaries were re-digitized at higher resolution with the aid of topography and classified roads to match the boundary as intended in the “Roadless Area Briefing Guide for Forest Planning for the Manti-La Sal National Forest.”The technical correction complies with direction described in the Roadless Area Conservation Rule 294.11 and Interim Directive 1920-2001-1 section 1925.05.On August 2, 2004, a technical correction along the border of the Salmon-Challis and Sawtooth National Forests was performed by GSTC. This correction fixes a data consolidation error that went undetected during the construction of the IRA GIS dataset. A 37,000 acre section of the Sawtooth National Recreation Area was mistakenly combined withthe Squaw Creek IRA. The technical correction restores these two features backto their original state. The technical correction complies with direction described in the Roadless Area Conservation Rule 294.11 and Interim Directive1920-2001-1 section 1925.05.On March 20, 2008, a technical correction to the name of an IRA on the Manti-La Sal National Forest was performed by the GSTC. This correction changes the name of the IRA from“Big Mak IRA” to “Roc Creek IRA” as requested by the Manti-La Sal National Forest. The technical correction complies with direction described in the Roadless Area Conservation Rule 294.11 and Interim Directive 1920-2001-1 section 1925.05.All of the following editing processes were performed using ArcGIS Desktop v10.0 software:On May 4, 2012, 61 records for the Sante Fe National Forest were updated with corrected IRA names provided by the Sante Fe NF GIS Coordinator. These changes comply with direction described in the Roadless Area Conservation Rule 294.11 and Interim Directive 1920-2001-1 section 1925.05On May 7, 2012, the following changes were made: 1) the current IRA 'coverage' format was converted to a file geodatabase feature class. 2) The GCS datum was transformed to NAD 83 from the original NAD 27 (using the NAD27 to NAD83 NADCON Geographic Transformation option) to conform with the Enterprise Data Warehouse (EDW) data standard. 3) The previously separate Alaska data was projected to Nad83 using the NAD27 to NAD 83 Alaska transformation option and then merged with this data to make a comprehensive US dataset that included the lower 48, PR, and AK. These changes comply with direction described in the Roadless Area Conservation Rule 294.11 and Interim Directive 1920-2001-1 section 1925.05ProjectionParameters:Decimal Degrees, NAD 83Spatial Information:VectorScale of original/hardcopy map:1:24,000 to1:198,000 Feature Type:Polygon Attributes:ITEM NAMEWIDTHOUTPUTTYPEDECIMALAREA818F5PERIMETER818F5REGION22IFOREST4040CSTATE22CNAME8080CCATEGORY46CACRES1616N5Definitions:CATEGORY1B = Inventoried Roadless Areaswhere road construction and reconstruction is prohibited.1B-1 = Inventoried Roadless Areasthat are recommended for wilderness designation in the forest plan and whereroad construction and reconstruction is prohibited.1C = Inventoried Roadless Areaswhere road construction and reconstruction is not prohibited.Time_Period_of_Content:Time_Period_Information:Range_of_Dates/Times:Beginning_Date:19991203 Ending_Date:20000915, Edited 20030107, Edited 20030627, Edited 20080320, Edited 20120504, Edited 20120507Currentness_Reference:publication date Status:Progress:Complete Maintenance_and_Update_Frequency:Unknown Spatial_Domain:Bounding_Coordinates:West_Bounding_Coordinate:-124.4East_Bounding_Coordinate:-65.7 North_Bounding_Coordinate:49.0 South_Bounding_Coordinate:18.2Keywords:Theme:Theme_Keyword_Thesaurus:NA Theme_Keyword:national inventoried roadless areas Place:Place_Keyword_Thesaurus:NA Place_Keyword:national forests Temporal:Temporal_Keyword_Thesaurus:NA Temporal_Keyword:NADistribution_Information:Distributor:Contact_Information:Contact_Person_Primary:Contact_Person:Steve LammeyContact_Organization:USDA Forest Service - GSTC Contact_Address:Address_Type:Mailing and Physical Address Address:2222 West 2300South City:Salt Lake City State_or_Province:UT Postal_Code:84119 Contact_Voice_Telephone:(801) 975-3369Contact_Facsimile_Telephone:(801) 975-3478 Contact_Electronic_Mail_Address:slammey@fs.fed.us Distribution_Liability:The USDA Forest Service manages resource information and derived data as a service to USDA Forest Service users of digital geographic data. The USDA Forest Service is in no way condoning or endorsing the application of these data for any given purpose. It is the sole responsibility of the user to determine whether or not the data are suitable for the intended purpose. It isalso the obligation of the user to apply those data in an appropriate and conscientious manner. The USDA Forest Service provides no warranty, nor accepts any liability occurring from any incorrect, incomplete, or misleading data, or from any incorrect, incomplete,or misleading use of these data.Much of the USDA Forest Service data are compiled, processed, and maintained with ArcGIS Desktop software developed by the Environmental Systems Research Institute (ESRI). Much of the information presented uses conventions and terms popularized by ESRI and its user community. The mention of commercial firms or products is for clarity and identification of procedures and methods only, and no endorsements are implied by the USDA Forest Service.