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Jewel Cave National Monument Nailhead spar crystal (NPS Photo)
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Jewel Cave National Monument
The Jasper Fire
The Jasper Fire approaches Jewel Cave's visitor center

NPS Photo

The Jasper Fire approaches the visitor center.

On August 24, 2000 an enormous wildfire started just west of Jewel Cave. Named the Jasper Fire, it burned a total of 83,508 acres in the southern Black Hills and approximately 90% of the land area of Jewel Cave National Monument.

Jewel Cave was evacuated at around 4:30 p.m. that day, and remained closed until September 2nd, when the danger had passed and the fire was nearly contained. As the fire swept through the monument, important documents, maps, and computers were brought into the cave for safekeeping.

Due to the hot, dry conditions and an abundance of fuel on the forest floor, the fire spread quickly and with severe intensity. In just the first day, the fire consumed an average of about seven football fields of forest per minute.

Firefighting efforts saved all of the structures on the monument. The recently restored historical cabin near the cave entrance was foamed several times to save it from the fire.

 
Burned trees, years after the Jasper Fire

NPS Photo

As you hike the trails at Jewel Cave, you can see evidence of the Jasper Fire.

Ten Years Later

On your visit to Jewel Cave, you will certainly see evidence of the Jasper Fire. Many of the burned trees have begun to fall, causing closures of the hiking trails on windy days. Some of the trees that survived the fire exhibit brown pine needles and black bark. The forest floor, no longer thick with ash, hosts a variety of plants that have rebounded since the fire.

 

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Calcite Spar Crystal/NPS file photo

Did You Know?
The “jewels” of Jewel Cave are calcite spar crystals. Calcite, which is about as hard as your fingernail, is too soft to be considered a true jewel.

Last Updated: May 03, 2010 at 11:29 MST