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 ...

The J.R. Simplot Company received the 2026 Klaus Thiessen Impact Award at the annual meeting of the Grand Forks Region Economic Development Corporation on Thursday, March 26, at ...

BOISE Idaho J.R. “Jack” Simplot, the founder of restaurant-industry supplier J.R. Simplot Co. and a key figure in the early growth of quick-service chains like McDonald’s, died peacefully at his home ...

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 ...

GRAND VIEW, Idaho — Environmental non-profit Snake River Waterkeeper (SRW) filed a civil lawsuit against J.R. Simplot Company Tuesday for polluting the middle Snake River in violation of the Clean ...

An anhydrous ammonia leak at the J.R. Simplot plant in Grand Forks triggered an evacuation this afternoon. Though initial reports indicated a major leak, fire Battalion Chief Rick Coulter said it ...

An official with the union representing striking J.R. Simplot Co. workers in Grand Forks, N.D., says proposed contract changes would affect employees' family lives. Workers at the Gateway Drive ...

An anhydrous ammonia leak at the J.R. Simplot plant in Grand Forks triggered an evacuation Thursday afternoon. Though initial reports indicated a major leak, fire Battalion Chief Rick Coulter said it ...

The Justice Department and the U.S. Environmental Protection Agency today announced a settlement with J.R. Simplot Company involving Simplot’s Don Plant manufacturing facility located near Pocatello, ...

POCATELLO — The Idaho Department of Environmental Quality is holding an informational meeting and a formal public hearing this week for local residents to provide feedback on a J.R. Simplot project ...