FIRE1890_POLY: A series of four maps showing the state of forests in the northern coastal area of Oregon. They show the change in stand age over time due to fires. This dataset shows conditions in 1890.

FIRE1850_POLY: One of a series of four maps showing the state of forests in the northern coastal area of Oregon. They show the change in stand age over time due to fires. This dataset shows conditions in 1850.

FIRE1920_POLY: A series of four maps showing the state of forests in the northern coastal area of Oregon. They show the change in stand age over time due to fires. This dataset shows conditions in 1920.

FIRE1920_POLY: A series of four maps showing the state of forests in the northern coastal area of Oregon. They show the change in stand age over time due to fires. This dataset shows conditions in 1920.

FIRE1940_POLY: A series of four maps showing the state of forests in the northern coastal area of Oregon. They show the change in stand age over time due to fires. This dataset shows conditions in 1940.

FIRE1940_POLY: A series of four maps showing the state of forests in the northern coastal area of Oregon. They show the change in stand age over time due to fires. This dataset shows conditions in 1940.

FIRE_POLY: Fire History polygons represent the final mapped wildfire perimeter of all BLM fires 10 acres or larger across Oregon and Washington. In addition, wildfires smaller than 10 acres may be included along with many other non-BLM Federal and State agencies wildfires.

FIRE_POLY: Fire History polygons represent the final mapped wildfire perimeter of all BLM fires 10 acres or larger across Oregon and Washington. In addition, wildfires smaller than 10 acres may be included along with many other non-BLM Federal and State agencies wildfires.

This polygon feature class represents the final spatial extent and boundaries of the BLM Fire Occurrence and History Perimeter: Final Perimeters (FPER). FPER is not considered a complete or authoritative historic fire perimeter dataset for the BLM or any other agency for any year in its history. Per FA IM-2020-009, the management and certification fire perimeters was transferred to the National Inter-agency Fire Center (NIFC) via the National Incident Feature Service (NIFS) for the year 2020 and beyond. FPER was therefore deprecated following 2019 and will no longer be updated or replicated. The WFIGS - Wildland Fire Perimeters Full History data from NIFC can be accessed here:https://data-nifc.opendata.arcgis.com/datasets/nifc::wfigs-interagency-fire-perimeters/explore?location=0.000000%2C0.000000%2C2.78. This dataset is a subset of the official national dataset, containing features and attributes intended for public release and has been optimized for online map service performance. The Implementation Guide represents the official national dataset from which this dataset was derived.

This polygon feature class represents the final spatial extent and boundaries of the BLM Fire Occurrence and History Perimeter: Final Perimeters (FPER). FPER is not considered a complete or authoritative historic fire perimeter dataset for the BLM or any other agency for any year in its history. Per FA IM-2020-009, the management and certification fire perimeters was transferred to the National Inter-agency Fire Center (NIFC) via the National Incident Feature Service (NIFS) for the year 2020 and beyond. FPER was therefore deprecated following 2019 and will no longer be updated or replicated. The WFIGS - Wildland Fire Perimeters Full History data from NIFC can be accessed here:https://data-nifc.opendata.arcgis.com/datasets/nifc::wfigs-interagency-fire-perimeters/explore?location=0.000000%2C0.000000%2C2.78. This dataset is a subset of the official national dataset, containing features and attributes intended for public release and has been optimized for online map service performance. The Implementation Guide represents the official national dataset from which this dataset was derived.