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.
Iowa City is a city in Johnson County, Iowa, United States. It is the only City of Literature in North America, as awarded by UNESCO in 2008. As of the 2010 Census, the city had a population of about 67,862. The U.S. Census Bureau estimated the 2015 population at 74,220, making it the state's fifth-largest city. Iowa City is the county seat of Johnson County and home to the University of Iowa.