Where to Find Jasper in Nebraska

Nebraska jasper shares ground with the state's prairie agate and chalcedony. Sioux and Box Butte counties in the Pine Ridge country produce red, yellow, and brown jasper in Tertiary silica-cemented sediments, often with banded chalcedony rims. The Hat Creek and Indian Creek drainages in Sioux County yield surface jasper float on ranch country. Cheyenne County adds occasional dendritic jasper in the North Platte gravels. Nebraska jasper tends toward soft, earth-tone colors and modest size, but takes a good polish for cabbing. Most ground is private and access depends on ranch permission.