The Jasper Fire was a wildfire that occurred between August 24 and September 25, 2000, in the Black Hills of South Dakota, United States.

Janice Stevenson of Newcastle, Wyoming, was arrested and accused of setting the fire by way of dropping a lit match and failing to put it out.

[9] Overall, the fire burned 83,508 acres (33,794 ha; 337.94 km2) of forest, making it the largest wildfire in both South Dakota[2] and Black Hills history.

[13] Controlled burns in 1994 and 1999 had cleared away enough underbrush to prevent the fire from moving towards and destroying the visitor center and surrounding buildings.

[13] The fire burned much of the natural habitat for various native species, including deer, turkeys, elk, coyotes, porcupines, squirrels, and bobcats.

[15] One pregnant mountain lion that was being tracked by a United States Geological Survey research group was killed in the fire.

[8] Most of the trees lost were ponderosa pines, which are notoriously difficult to regrow in severe burn areas due to their short-distance seed dispersal method.

[16] Additionally, the fire was so intense that it destroyed the seed sources in the soil, leaving no natural way for trees to regenerate inside the burn scar.

She was also questioned about potential involvement in the 1988 Westberry Trails Fire, an unsolved arson which destroyed 15 homes in Rapid City, South Dakota.

Stevenson's attorney opposed the reversal, stating it was motivated by the opportunity to close the Westberry Trails case.