Horse Valley Fire

The burned area boundary MTBS mapped from Landsat imagery, 2,562 acres. Point of origin as reported, 37.761, -112.653.

Reported final size

2,889 acres

Burned area mapped by MTBS

2,562 acres

Area inside the final perimeter

2,888 acres

Discovered

July 5, 2009, 6:44 p.m. local time

Contained

July 30, 2009, 4:00 p.m. local time

Cause

Natural

State

Utah

County

Garfield County

Land ownership at origin

Forest Service

Reporting unit

Dixie National Forest

Agency

Forest Service

Unit

UTDIF

Incident type

Wildfire

MTBS fire identifier

UT3778711264620090705

MTBS assessment

Extended

Fire occurrence record

FS-1477481

Perimeter map method

GPS - Uncorrected Data

Note on the perimeter

Fire was initially managed for multiple objectives. Fire was converted to wildfire after burning onto private property during third day of red flag event.

The three sizes are three measurements: the size the agency reported when the fire was out, the burned area MTBS drew from satellite imagery before and after, and the GIS area inside the final perimeter, unburned islands included. They rarely agree exactly.

The status summaries (ICS-209 forms) the incident teams filed: 13, from July 7, 2009 to September 17, 2009. These are the teams’ own estimates, written while the incident was running, and personnel is totaled from the resources each report lists. A fact the reports leave blank is not shown, and a zero on the form is treated as blank.

Structures destroyed

1

Most structures threatened at once

1

Injuries

1

Most personnel assigned

302 on July 13, 2009

Most aircraft assigned

5

Cost reported by the teams

$2.1 million, in 2009 dollars

Cause on the reports

Lightning or other natural

Primary fuel model reported

Timber (Litter and Understory)

Suppression strategy reported

Full suppression

Acres reported by day

The largest rise between two days’ reports was 665 acres, on July 9, 2009.

Every fire of 2009 Utah fire history

• Paragonah, UT11 miles northwest of the fire
• Parowan, UT11 miles northwest of the fire
• Panguitch, UT13 miles east of the fire
• Enoch, UT20 miles west of the fire
• Cedar City, UT23 miles west of the fire
• Beaver, UT36 miles north of the fire

Perimeters from the National Interagency Fire Center’s Interagency Fire Perimeter History, compiled from the Forest Service, BLM, BIA, Fish and Wildlife Service, National Park Service, the Alaska Interagency Fire Center and CAL FIRE. Burned areas and ignition dates from Monitoring Trends in Burn Severity (MTBS), a program of the US Geological Survey and the USDA Forest Service. Fire reports from Short, Karen C. 2022, Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014], 6th Edition, Forest Service Research Data Archive, doi.org/10.2737/RDS-2013-0009.6. Records before 2014 were joined by this site: a fire report to the burned area its MTBS identifier names, a perimeter to the burned area it lies in when the names or the sizes agree. Incident figures from ICS-209-PLUS: St. Denis, Lise A., Karen C. Short, Kathryn McConnell, Maxwell C. Cook, Nathan P. Mietkiewicz, Mollie Buckland and Jennifer K. Balch, 2023, All-hazards dataset mined from the US National Incident Management System 1999-2020, Scientific Data 10, 112, doi.org/10.1038/s41597-023-01955-0; data on figshare, doi.org/10.6084/m9.figshare.19858927.v3, licensed CC BY 4.0. This site matched each incident to the fire by the dataset’s own links where it has them, and otherwise by name, start date, state and size, and left out figures too large to be possible for a fire of its size.