U.S. Department of the Interior, Bureau of Land Management (BLM), Alaska Fire Service 20260120 vector digital data Fairbanks, Alaska Bureau of Land Management https://fire.ak.blm.gov/predsvcs/maps.php Wildland fire history data is made up of wildland fire locations (fire occurrence points) and wildland fire perimeter polygons. Alaska Statewide Fire History Perimeters is a time series of areas burned in each calendar year across Alaska. The polygons in this dataset represent perimeters of wildfires that occur naturally (e.g., lightning) or by humans accidentally (e.g., escaped campfire) or maliciously across Alaska. NOTE: Not all recorded wildland fires are associated with a perimeter polygon. For wildfires occurring before 1987, emphasis was placed on mapping perimeters of at least 1,000 acres. From 1987 to 2015, emphasis was placed on mapping wildfires with perimeters of at least 100 acres. From 2016 forward, fires over 10 acres should be associated with perimeters. The delineations range in quality from hand sketched perimeters drawn on topographic maps to heads-up interpretation of fine scale satellite imagery (e.g., Sentinel-2 imagery, 10 meter resolution). Although this is a comprehensive dataset, it is not complete and is subject to revision. Users should be aware that there are many of the fires between 1961 and 1968 are missing fire reports. Data are available as ArcGIS Server Map and Feature Services https://fire.ak.blm.gov/arcgis/rest/services/MapAndFeatureServices or for download from https://fire.ak.blm.gov/predsvcs/maps.php. This dataset is used to display the perimeters of historical wildland fires within Alaska on maps. These data should not be used at a scale larger than 1:63,360. U.S. Department of the Interior, Bureau of Land Management (BLM), Alaska Fire Service manages a comprehensive Fire History (points and polygons) dataset for Alaska. 19400601 20251231 Temporal extent In work Annually -179 -130 71 54 BLM-THEME Disturbance Fire Geospatial Management NONE fire history fire perimeters wildland fire wildland fire history ISO 19115 Topic Categories biota environment BLM-STATE Alaska None, these data are considered public domain. These data are provided by Bureau of Land Management (BLM) 'as is' and might contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. The information contained in these data is dynamic and may change over time. The data are not better than the sources from which they were derived, and both scale and accuracy may vary across the data set. These data might not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data may contemplate. The User is encouraged to carefully consider the content of the metadata file associated with these data. These data are neither legal documents nor land surveys, and must not be used as such. Official records may be referenced at most BLM offices. Please report any errors in the data to the BLM office from which it was obtained. The BLM should be cited as the data source in any products derived from these data. Any Users wishing to modify the data should describe the types of modifications they have performed. The User should not misrepresent the data, nor imply that changes made were approved or endorsed by BLM. This data may be updated by the BLM without notification. U.S. Department of the Interior, Bureau of Land Management (BLM), Alaska Fire Service GIS Specialist mailing

P.O. Box 35005

Fort Wainwright AK 99703 US blm_ak_afs_gis@blm.gov Contact by email U.S. Department of the Interior, Bureau of Land Management (BLM), Alaska Fire Service GIS Specialist mailing

P.O. Box 35005

Fort Wainwright AK 99703 US blm_ak_afs_gis@blm.gov Contact by email Alaska Wildland Fire Coordinating Group (AWFCG), State of Alaska Department of Natural Resources, Division of Forestry and Fire Protection (DFFP), US Department of Agriculture, Forest Service (USFS), U.S. Department of the Interior, Bureau of Land Management , Alaska Fire Service (AFS) Esri ArcGIS 13.3.0.52636 Unknown, accuracy requirements are generally determined by the required use of the Protecting Agencies and Jurisdictional Agencies. Fires within years cannot overlap. Only fires within the State of Alaska are included in this dataset and not all recorded wildland fires are associated with a perimeter polygon. Although this dataset is comprehensive, it is not complete and is subject to revision. Unknown, accuracy requirements are generally determined by the required use of the Protecting Agencies and Jurisdictional Agencies. Note that accuracy has improved over time. Data continually submitted by multiple sources. 20260120 U.S. Department of the Interior, Bureau of Land Management (BLM), Alaska Fire Service GIS Specialist mailing

P.O. Box 35005

Fort Wainwright AK 99703 US blm_ak_afs_gis@blm.gov Contact by email Vector GT-polygon composed of chains 5714 AK_fire_location_polygons_AKAlbersNAD83 Table containing attribute information associated with the data set. AFS OBJECTID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. SHAPE Feature geometry. ESRI Coordinates defining the features. NAME Name of the fire, assigned by Dispatch Centers. AICC Free text. RECORDNUMBER Alaska Interagency Coordination Center (AICC) issued fire number. AICC Alphanumeric values, unique within a single fire season. ACRES GIS calculated area, expressed in acres. AFS Positive numbers. AFSNUMBER AFS fire code. AFS Numeric or alphanumeric values. DOFNUMBER State of Alaska fire code. DOF Numeric or alphanumeric values. USFSNUMBER USFS fire code. USFS Numeric or alphanumeric values. ADDNUMBER Field for internal AFS use. AFS Positive numbers. PERIMETERDATE Date perimeter was acquired OR date of the post-fire image when imagery is the data source for the perimeter. AFS Date. LATESTPERIMETER Indicates that the record represent that most recent fire perimeter. AFS Yes or No. SOURCE Source used to delineate the fire perimeter. AFS Values include: Digitized-Topo, GPS, GPS-Flight, GPS-Unknown, GPS-Walked, GPS-Walked/Driven, Hand Sketch, Image Analysis, Image Interpretation, Mixed Methods, Other, Remote Sensing Derived, NULL, and Unknown. SOURCEMETHOD Optional: Perimeter mapping source/platform. AFS Values include: ATV, DRG63, DRG250, Fixed Wing, Foot, Helicopter, Image, Supervised, Tablet, Other, NULL, and UnSupervised. SOURCECLASS Optional: Estimated accuracy of the fire perimeter. AFS Values include: > 1 KiloMeter, Within 1 KiloMeter, Within 200 Meters, Within 90 Meters, Within 10 Meters, or NULL. AGENCYACRES Agency-provided estimate/calculation of fire size. AFS Positive numbers or NULL. ACREAGEMETHOD How acreage was calculated. AFS Free text COMMENTS Any comments associated with the data record. AFS Free text FIREID ID for the fire. This field is used to join fire perimeter (polygon) records to fire locations (point). Perimeter FIREID = Fire points ID. AFS Whole, positive numbers FIREYEAR Year the fire occured. AFS Year (YYYY) UPDATETIME Time the data record was updated AFS Time USEDONFINALREPORT Identified is the perimeter was used in the final fire report. Yes or No AFS Yes or No FPOUTDATE Date a fire is declared 'out'. AFS Date FPMERGEDDATE Date the fire merged with another fire. AFS Date IRWINID Unique ID assigned by the Integrated Reporting of Wildland-Fire Information (IRWIN) application. IRWIN UUID PRESCRIBED Identify prescribed fires. Yes or No AFS Yes or No FIRESEASONS Decade the fire burned (e.g., 2000-2009) Decade the fire burned (e.g., 2000-2009) SHAPE_Length Length of feature in internal units. Esri Positive real numbers that are automatically generated. SHAPE_Area Area of feature in internal units squared. Esri Positive real numbers that are automatically generated. Alaska Statewide Wildland Fire History - Perimeters U.S. Department of the Interior, Bureau of Land Management (BLM), Alaska Fire Service GIS Specialist mailing

P.O. Box 35005

Fort Wainwright AK 99703 US blm_ak_afs_gis@blm.gov Contact by email The BLM assumes no responsibility for errors or omissions. No warranty is made by the BLM as to the accuracy, reliability, or completeness of these data for individual use or aggregate use with other data; nor shall the act of distribution to contractors, partners, or beyond, constitute any such warranty for individual or aggregate data use with other data. Although these data have been processed successfully on computers of BLM, no warranty, expressed or implied, is made by BLM regarding the use of these data on any other system, or for general or scientific purposes, nor does the fact of distribution constitute or imply any such warranty. In no event shall the BLM have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including, but not limited to, any loss of profits arising out of the use or reliance on the geographic data or arising out of the delivery, installation, operation, or support by BLM. 20260120 20260120 U.S. Department of the Interior, Bureau of Land Management (BLM), Alaska Fire Service GIS Specialist mailing

P.O. Box 35005

Fort Wainwright AK 99703 US blm_ak_afs_gis@blm.gov Contact by email FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 local time None, these data are considered public domain. These data are provided by Bureau of Land Management (BLM) 'as is' and might contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. The information contained in these data is dynamic and may change over time. The data are not better than the sources from which they were derived, and both scale and accuracy may vary across the data set. These data might not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data may contemplate. The User is encouraged to carefully consider the content of the metadata file associated with these data. These data are neither legal documents nor land surveys, and must not be used as such. Official records may be referenced at most BLM offices. Please report any errors in the data to the BLM office from which it was obtained. The BLM should be cited as the data source in any products derived from these data. Any Users wishing to modify the data should describe the types of modifications they have performed. The User should not misrepresent the data, nor imply that changes made were approved or endorsed by BLM. This data may be updated by the BLM without notification.