DIV STYLE=text-align:Left;font-size:12ptDIVDIVPSPANThe BLM OR Fire History Points Map Service represents points of origins of BLM fires that occur naturally (e.g., lightning), accidentally by humans (e.g., escaped campfire) or maliciously by humans within Oregon and Washington. The dataset includes some, but not all, historic fires (fires declared ‘out’ in calendar years prior to the current year). There is no lower size limit for fires to be included. In addition, many non-BLM Federal and State agencies fire origins are present. For a complete description of the data, consult the Fire History Spatial Data Standard at: SPANA href=https:www.blm.govaboutdataoregon-data-management STYLE=text-decoration:underline;SPANhttps:www.blm.govaboutdataoregon-data-managementSPANASPAN. SPANPPSPAN PPSPANThe BLM OR Fire History Points Map Service is created from fire_history.gdbire_point. This map service has one scale dependency. Labels for the Fire History Point layer displays at a scale in beyond 1:100,001.SPANPDIVDIVDIV

(Summary adapted from on-line metadata description.)

 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. The maps
 show conditions in 1850, 1890, 1920, and 1940.

A summary data set of all fire polygons we could locate as of December 2007 . We used multiple datasets to developed this layer including data gathered from the internet, publically available databases, and personal contacts with dozens of agency personnel throught the western U.S. Data were assessed for utility (but not accuracy) and formatted for consistency. Each source data set was then attributed consistently with fields for record number and year (of fire). Because various resource management entities map fires somewhat independently (especially in more recent years) we merged overlapping polygons for each year.. Users are encouraged to understand the contents of this data file before using it.