Interagency Fire Perimeter History, all years
Mapped perimeters of United States wildland fires, conglomerated from the fire perimeter datasets of the USDA Forest Service, the Bureau of Land Management, the Bureau of Indian Affairs, the Fish and Wildlife Service and the National Park Service, with the year and mapped area of each.
Rights
- Commercial reuse
- Yes
- Redistribution
- Yes
- Derivative use
- Yes
- Attribution required
- No
- Restrictions
- Applies to material authored by US federal agencies. Third-party material carried within a federal product may be separately protected.
- Terms last checked
- 27 August 2026
Access and coverage
- Publisher
- National Interagency Fire Center
- Website
- https://data-nifc.opendata.arcgis.com/datasets/nifc::interagencyfireperimeterhistory-allyears-view
- Geographic coverage
- United States
- Temporal coverage
- 1984–2019
- Resolution
- Individual fire perimeter
- Update frequency
- irregular
- Formats
- geojson, csv, api
- Bulk download
- Available
- Registration required
- No
- Cost to Hydrionis
- Free
- Domains
- ecosystem
Notes
Authored by federal agencies, so public domain applies; the text NIFC attaches in place of a licence is a disclaimer rather than a grant, and it asks that the data be treated as strategic rather than authoritative for any particular fire — "not legal documents", and no better than the sources it was assembled from. Hydrionis uses only the year, the mapped area and the perimeter centroid, and derives from them the burned area within fifty kilometres of each of its own United States measurement points. Coverage ends in 2019: the layer answers queries for later years with a residue of records that would read as a collapse in American wildfire rather than as the end of a dataset, so collection stops where the coverage does. Perimeters from 2020 are published separately as WFIGS and are not yet held.
What Hydrionis holds from this publisher
The publisher’s own coverage is above. This is what Hydrionis has actually taken from it, at the subjects it measures — gauges, boreholes, reservoirs or places.
What is measured
- Burned area within 50 km · ha
How current it is
- Partial record held
- NIFC offers more than Hydrionis currently holds. The newest value here covers 2019; the gap is a deliberate limit on what has been collected, not a limit on the source. The Interagency Fire Perimeter History layer covers 1984 to 2019; perimeters from 2020 are published separately as WFIGS and are not held. The layer answers queries for later years with a residue of records — 151 in 2020 against 3,217 in 2019 — which would read as a collapse in American wildfire rather than as the end of a dataset, so collection stops where the coverage does.The Interagency Fire Perimeter History layer covers 1984 to 2019; perimeters from 2020 are published separately as WFIGS and are not held. The layer answers queries for later years with a residue of records — 151 in 2020 against 3,217 in 2019 — which would read as a collapse in American wildfire rather than as the end of a dataset, so collection stops where the coverage does.
Hydrionis products built from it
Where this publisher’s data reaches a reader. Each has its own page, with its licence and how to cite it.