Mount Morris is an unincorporated community and census-designated place (CDP) in Greene County, Pennsylvania, United States. It is located in Perry Township, near I-79. As of the 2010 census the population was 737.
Mount Morris is located at 39°43′59″N 80°04′04″W (39.733135, -80.067842), on Interstate 79 near the West Virginia state line. Its elevation is 938 feet (286 m) above sea level. According to the U.S. Census Bureau, the CDP has a total area of 2.68 square miles (6.95 km2), of which 0.01 square miles (0.02 km2), or 0.27%, are water.
High Point Raceway, a motocross track, is located 4 miles (6 km) east of Mount Morris. The track hosts races in the AMA Motocross Championships series, including the High Point Nationals held each Father's Day weekend. Also known for having authentic Native American trails.