The archived outline of the Saddle Ridge Fire spans about 11.4 km from west to east and 9.4 km from south to north. CAL FIRE places the incident at Saddle Ridge Rd, Sylmar. The mapped boundary provides a second way to locate the event: it shows the extent around that reference location.
| Start listed by CAL FIRE | 10 October 2019 |
|---|---|
| County listing | Los Angeles |
| Reported area in hectares | 3,561 ha (converted from acres) |
| Extent of the mapped outline | 11.4 × 9.4 km (west–east × south–north) |
| Containment entry in the archive | 31 October 2019 |
| Perimeter collection method as recorded | Mixed Collection Methods |
What the perimeter shows
The two spans differ by only 2.0 km. That does not make this a circular burn: the dimensions measure the outermost coordinates, leaving indentations and gaps invisible. Use the polygon itself, rather than its enclosing rectangle, to check whether a location intersects the footprint.
Two estimates of area
The incident report gives 8,799 acres; the interagency feature stores 8,799.3 GIS acres. The mapped value is 0.3 acres above the reported value (0.00%). This compares two published measurements, not two observation times. The difference cannot be read as fire growth.
CAL FIRE also records structures damaged: 88; structures destroyed: 19. Those counts come from the incident record. A building inside the perimeter cannot be assigned a damage category from this map alone.
A similar-sized fire for comparison
The Red Bank Fire of 2019 is the closest match by reported acreage in this 100-case collection (8,836 acres). Its mapped spans are 8.1 by 9.9 km, west–east then south–north, versus 11.4 by 9.4 km here. The longer axes run in different directions. Matching on acreage would miss that contrast.
Sources and map method
- Saddle Ridge Fire · CAL FIRE incident record
- NIFC interagency history · source perimeter (GeoJSON)
- Red Bank Fire · comparison incident
- Comparison perimeter · interagency record
Spans use the geographic extremes of a generalized boundary, converted to kilometres at its middle latitude. They are approximate map dimensions, not distances travelled by flames. The GIS acreage is the source attribute, not an area recalculated from the simplified outline.