Nickowitz Fire (2015): mapping the 7,509-acre footprint

The archived outline of the Nickowitz Fire spans about 10.2 km from west to east and 6.9 km from south to north. CAL FIRE places the incident at near Orleans. The mapped boundary provides a second way to locate the event: it shows the extent around that reference location.

Start listed by CAL FIRE1 August 2015
County listingDel Norte
Reported area in hectares3,039 ha (converted from acres)
Extent of the mapped outline10.2 × 6.9 km (west–east × south–north)
Containment entry in the archive9 November 2015
Nickowitz Fire historical perimeter; north up. Approximate spans 10.2 by 6.9 kilometres.
Generalized historical perimeter. Source: NIFC interagency fire perimeter history.

What the perimeter shows

The two spans differ by only 3.3 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 7,509 acres; the interagency feature stores 7,576.1 GIS acres. The mapped value is 67.1 acres above the reported value (0.89%). This compares two published measurements, not two observation times. The difference cannot be read as fire growth.

A similar-sized fire for comparison

The Parker 2 Fire of 2017 is the closest match by reported acreage in this 100-case collection (7,697 acres). Its mapped spans are 11.1 by 7.0 km, west–east then south–north, versus 10.2 by 6.9 km here. The broad proportions are comparable. That does not establish that fuel, wind or suppression tactics were similar.

Sources and map method

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.