U.S. Department of the Interior, Bureau of Land Management (BLM), Alaska Fire Service 20250210 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 13.5.5.57366 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. 20260122 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 0 AK_fire_location_polygons_with_origin_info_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. GACC Code for Geographic Area Coordination Center (GACC). NWCG AICC Alaska Interagency Coordination Center NWCG CalendarYear Year the fire occurred. AFS Year as integer AICC_FIREID Internal identifier used by only by AICC. AICC Whole, positive numbers. AICC_RecordNumber Alaska Interagency Coordination Center (AICC) issued fire number. AICC Alphanumeric values, unique within a single fire season. IncidentName Name of the fire, assigned by Dispatch Centers. AICC Free text. UniqueFireIdentifier Unique identifier assigned to each wildland fire. yyyy = calendar year, SSUUUU = POO protecting unit identifier (5 or 6 characters), xxxxxx = local incident identifier (6 to 10 characters) NWCG Unique identifier assigned to each wildland fire. yyyy = calendar year, SSUUUU = POO protecting unit identifier (5 or 6 characters), xxxxxx = local incident identifier (6 to 10 characters) GISAcres GIS calculated area, expressed in acres. AFS Positive numbers. IncidentSize Reported for a fire. NWCG Positive numbers PerimeterDateTime Date perimeter was acquired OR date of the post-fire image when imagery is the data source for the perimeter. AFS Date. PerimeterLastUpdated Date when the perimeter record was last update. This value can be years later than the discovery year. AFS Date. FireComments Any comments associated with the data record. AFS Free text. MapMethod 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. IncidentTypeCategory The Event Category is a sub-group of the Event Kind code and description. The Event Category further breaks down the Event Kind into more specific event categories. NWCG Incident Type Category NWCG IncidentTypeKind A general, high-level code and description of the types of incidents and planned events to which the interagency wildland fire community responds. NWCG Incident Type Kind NWCG IsPrescribedFire This field describes whether the fire type was a prescribed fire (i.e., planned ignition). AICC Y Yes AICC N No AICC POOCoordLat Latitude coordinate of where the incident started. Format is decimal degrees. This value can change as more information about the fire event becomes available. AICC Latitude coordinate. POOCoordLong Longitude coordinate of where the incident started. Format is decimal degrees. This value can change as more information about the fire event becomes available. AICC Longitude coordinate. POOOwnerUnit NWCG Unit Identifier to identify the unit with jurisdiction for the land where the point of origin of a fire falls OR point of dispatch. NWCG Unit ID NWCG POOFireMgmtOption Fire Management Option at the time of ignition. Fire wildfire management options are employed statewide by federal and state agencies and Alaska Native groups to prioritize fires and pre-designate initial response actions. Values generally include: Critical, Full, Modified, Limited, Unplanned, Prescribed. Modified will also include a conversion date. AICC Wildfire Management Options Alaska Interagency Wildland Fire Management Plan DiscoveryDate Date and time the fire was discovered. Date is expressed as MM/DD/YYYY, time is in 12 hour format. Values in Alaska time. AICC Date and time. ControlDate Date and time the fire was classified as controlled. Date is in MM/DD/YYYY format, time is in 12 hour format. Values in Alaska time. AICC Date and time. OutDate Date a fire is declared 'out'. May, or may not be when fire growth ceases. Values in Alaska time. AICC Date and time. POOLandownerKind Broad classification of land ownership identifying the deeded owner at the point of origin at the time of the incident NWCG Landowner Kind NWCG FireMergedDate Date the fire merged with another fire. Values in Alaska time. AICC Date and time. MergedWithFire Identifies the "parent" fire. AICC Free text. CauseClassification Broad classification of the reason the fire occurred identified as human, natural or unknown. NWCG Wildfire Cause Data Standard NWCG GeneralCause Agency or circumstance which started a fire or set the stage for its occurrence; source of a fire's ignition. For statistical purposes, fire causes are further broken into specific causes NWCG Wildfire Cause Data Standard NWCG SpecificCause A further categorization of each General Fire Cause to indicate more specifically the agency or circumstance which started a fire or set the stage for its occurrence; source of a fire's ignition. NWCG Wildfire Cause Data Standard NWCG POOResponsibleUnit Unit responsible for providing direct incident management and services to a an incident pursuant to its jurisdictional responsibility or as specified by law, contract or agreement. Values have changed over time. AICC Unit responsible for providing direct incident management and services to a an incident pursuant to its jurisdictional responsibility or as specified by law, contract or agreement. Values have changed over time. CpxName The Incident Name of the Complex that is the parent of the incident. AICC Text CpxID The IRWIN ID for the Complex record that is the parent of the incident. IWRIN GUID as text EstimatedTotalCost Estimated total cost, in US Dollars, for the fire. AICC Positive numbers AFSCode Fire code assigned by BLM Alaska Fire Service dispatch. Format and source has changed over time. AICC Fire code assigned by BLM Alaska Fire Service dispatch. Format and source has changed over time. DOFCode Fire code assigned by DNR Division of Forestry dispatch. Format has changed over time. DOF Fire code assigned by DNR Division of Forestry dispatch. Format has changed over time. USFSCode Fire code assigned by USDA Forest Service dispatch. USFS Fire code assigned by USDA Forest Service dispatch. IRWINID Unique ID assigned by the Integrated Reporting of Wildland-Fire Information (IRWIN) application. IRWIN UUID FORID Unique identifier assigned to each incident record in the Fire Occurrence Data Records (FODR), NWCG GUID as text 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 -fire perimeters with origin information. 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. 20260122 20260122 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.