The eastern 60% of the state is flat prairie and is slowly losing population, It is filled with cattle ranches, wheat farms, and oil and gas wells. The leading city is [[Billings]], a medical and commercial center. The climate is especially harsh in the wintertime. | The eastern 60% of the state is flat prairie and is slowly losing population, It is filled with cattle ranches, wheat farms, and oil and gas wells. The leading city is [[Billings]], a medical and commercial center. The climate is especially harsh in the wintertime. |