The downloadable ZIP file contains an Esri ArcInfo Coverage.  This data set reflects large fires (approximately 200 acre minimum size) for 1900-1997 for Boise National Forest, Idaho.  These data are intended to assist efforts surrounding broad-scale forest planning for analysis in fire-recovery: soil stabilization, reestablishing vegetation, and protection of other resources such as wildlife, riparian habitat, water quality, fisheries and timber. Due to multiple fires occurring in the same area, at different times, many individual polygons are much smaller than 200 acres. Fire location, perimeter, and size are approximate. Much variation in accuracy of spatial features, eg. fire perimeters for 1994 (Boise River Complex) were collected with aerial gps, while perimeters for much older fires were approximated from narrative accounts. Data source/accuracy for individual fires not identified. Attributes for some fires included recorded acres as well as ArcInfo calcualted acres, much variablility in agreement, see discussion under procedures used and limitations of data.These data were contributed to INSIDE Idaho at the University of Idaho Library in 2000.