It was 1979 when potato king J.R. Simplot built a 7,370-square-foot, Mediterranean-style mansion atop a prominent hill in the Boise Highlands. Although the mansion has since been demolished, Simplot’s ...

BOISE, Idaho (AP) -- Billionaire J.R. Simplot, the spud king of America whose wealth also helped create one of the world's biggest computer chip makers, died Sunday at his Boise home. He was 99. Ada ...

It requires the J.R. Simplot Company to implement modifications for greater recovery and reuse of phosphate. It also requires the company to ensure financial resources are available when the time ...

BOISE, Idaho (AP) — Ada County Coroner Erwin Sonnenberg says Idaho frozen food magnate J.R. Simplot died Sunday in his Boise. He was 99. Sonnenberg says Simplot died of natural causes. In the 1950s, ...