Mark Morris High School is a public high school in Longview, Washington, United States, for grades nine through twelve. In 2013, it had an enrollment of 976 students. A part of Longview Public Schools, the school was built in 1957 and is named for Samuel Mark Morris, the third president of the Long-Bell Lumber Company. The school has a partially open campus. Students are allowed to leave campus during lunch if they wish. Mark Morris was recognized as one of thirteen high schools identified as a high performing school in the area of math growth during the 2013 Washington Achievement Awards at OSPI in Olympia. OSPI assesses data from state testing over the past three years and it made significant growth during that period. Source: Wikipedia (en)