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Inactive

South Fork

Sioux, NE · Natural

This fire is no longer active. It burned 39,696 acres in Sioux before dropping off the national incident feed.

0%Inactive

39,696

Acres Burned

154

Days Burning

Jun 9, 2026

Discovered

2mo ago

Last Update

Growth

No growth in the last day, containment at 100%
Jun 13 / 28,878 acresAug 30 / 39,696 acres

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Public Lands Nearby

9 public land units within 75 miles

Soldier Creek Wilderness

Go

Wilderness / NE

2.6 mi

NE

Agate Fossil Beds National Monument

Go

Monument / NE

17.4 mi

S

Oglala National Grassland

Go

National Grassland / NE

17.9 mi

N

Pine Ridge National Recreation Area

Go

Recreation Area / NE

24.6 mi

E

North Platte National Wildlife Refuge

Go

Wildlife Refuge / NE

47.8 mi

S

Scotts Bluff National Monument

Go

Monument / NE

57.1 mi

S

Wind Cave National Park

Go

National Park / SD

64.4 mi

N

Jewel Cave National Monument

Go

Monument / SD

74.6 mi

N

Jewel Cave National Monument

Go

Monument / SD

74.7 mi

N

Situation Updates

Posted by the incident management team on InciWeb, plus changes read from NIFC interagency perimeter data

South Fork mapped at 39,696 acres, 100% contained

Perimeter data
Jul 1

Interagency perimeter data shows the South Fork at 39,696 acres, 100% contained.

IRWIN

South Fork Final Update 06-24-2026

Announcement
Jun 24

Chadron, N.E. (June 24th, 2026) — The South Fork Fire remains at 39,696 acres and containment is now at 100 % . Fire suppression repair continues - there are areas of heat or smoldering stump holes well into the interior of the fire that does not present a threat to continued fire growth. Firefighters are patrolling for any remaining heat, utilizing hose from fire engines to thoroughly soak priori...

InciWeb

South Fork Fire Update 06-23-2026

Announcement
Jun 23

Chadron, N.E. (June 23rd, 2026) — The South Fork Fire acreage stays the same at 39,696 acres, and increased containment of 92%. With staffing at 72 personnel, yesterday’s efforts focused on continued suppression repair, with county crews working to repair roads that were heavily traveled by emergency vehicles in and around the burn area. Fire crews continued patrolling uncontained fireline around ...

InciWeb

South Fork update: 39,696 acres, 92% contained

Perimeter data
Jun 22

Per interagency perimeter data, the South Fork containment moved from 90% to 92%.

IRWIN

South Fork Fire Daily Update 06-21-2026

Announcement
Jun 21

Fire Update: South Fork Fire Sunday, June 21, 2026 – 8:00 a.m. MDT Rocky Mountain Complex Incident Management Team 2 Incident Commander Jay Mickey Phone (public and media inquiries): 308-775-5438 Email: 2026.southfork@firenet.gov Linktree: linktr.ee/2026southforkfire Rocky Mountain CIM Team 2 Transitions to a Type 3 Team at 6:00 p.m. Today Current Conditions: Containment on the South Fork Fire is ...

InciWeb

South Fork update: 39,696 acres, 90% contained

Perimeter data
Jun 20

Per interagency perimeter data, the South Fork grew 638 acres to 39,696.

IRWIN

South Fork update: 39,057 acres, 90% contained

Perimeter data
Jun 19

Per interagency perimeter data, the South Fork containment moved from 80% to 90%.

IRWIN

South Fork update: 39,057 acres, 80% contained

Perimeter data
Jun 18

Per interagency perimeter data, the South Fork containment moved from 74% to 80%.

IRWIN

South Fork update: 39,057 acres, 74% contained

Perimeter data
Jun 17

Per interagency perimeter data, the South Fork containment moved from 64% to 74%.

IRWIN

South Fork update: 39,057 acres, 64% contained

Perimeter data
Jun 16

Per interagency perimeter data, the South Fork grew 143 acres to 39,057.

IRWIN

South Fork update: 38,914 acres, 64% contained

Perimeter data
Jun 16

Per interagency perimeter data, the South Fork containment moved from 55% to 64%.

IRWIN

South Fork update: 38,914 acres, 55% contained

Perimeter data
Jun 15

Per interagency perimeter data, the South Fork grew 1 acres to 38,914.

IRWIN

South Fork update: 38,913 acres, 55% contained

Perimeter data
Jun 15

Per interagency perimeter data, the South Fork containment moved from 44% to 55%.

IRWIN

South Fork update: 38,913 acres, 44% contained

Perimeter data
Jun 14

Per interagency perimeter data, the South Fork grew 1,903 acres to 38,913.

IRWIN

South Fork update: 37,010 acres, 44% contained

Perimeter data
Jun 14

Per interagency perimeter data, the South Fork grew 4,192 acres to 37,010.

IRWIN

Timeline

Jun 9Now

154 days since discovery

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Data Sources

Fire data from NIFC Wildland Fire Interagency Geospatial Services (WFIGS) via IRWIN. Satellite hotspots from NASA FIRMS VIIRS. Situation updates are either posted by the incident management team on InciWeb or read by us from WFIGS perimeter data, and each one says which. Air quality data from EPA AirNow. Public lands boundaries from USGS PAD-US 4.0.

IRWIN ID: 979b5387-72fa-480b-bd4f-cde2c4fe9ed3

Important

More Than Just Parks aggregates third-party data from EPA AirNow, NOAA, NASA FIRMS, and NIFC/WFIGS. Readings can be delayed, estimated, incomplete, or wrong, and conditions on the ground change quickly. This tool is for general information only and is not a substitute for official air quality alerts, fire and evacuation orders, land manager closures, or emergency services. Verify with the managing agency and local authorities before making any travel, health, or safety decision. We make no warranty as to accuracy and accept no liability for decisions made using this information. This is not an emergency or evacuation tool. If you are near a fire, follow official evacuation orders and call 911. Terms of Service.