Do not cover or add water. Place the roast in the preheated oven. Reduce the temperature to 475 degrees F (245 degrees C). Roast for 21 minutes (seven minutes per pound) then turn off the oven and let the roast sit in the hot oven for 2 1/2 hours. Do not open the door at all during this time! Remove the roast from the oven, the internal temperature should have reached at least 145 degrees F (65 degrees C).
While Ames is the largest city in Story County, the county seat is in the nearby city of Nevada 8 miles (13 km) east of Ames. Ames is the home of Iowa State University of Science and Technology (ISU), a public research institution with leading Agriculture, Design, Engineering, and Veterinary Medicine colleges.
Adair County is a county located in the U.S. state of Iowa. As of the 2010 census, the population was 7,682. Its county seat is Greenfield. The county used to be part of Iowa's 5th congressional district, which had a score of R+9 (strongly Republican) in the Cook Partisan Voting Index.