Boyd County, frontier land located in the sand hills of northern Nebraska, was established in August 1891. It is 545 square miles in size and bordered by South Dakota to the north, Holt County to the south, Knox County to the east and Keya Paha County to the west. The county seat is Butte. By the time US Ecology was invited to fi nd a suitable LLRW disposal location, the county had a population of roughly 2,800, with Butte accounting for 452 and Spencer 10 miles east accounting for 535 (United States Census Bureau 1990).