
In 1998 an approximately 20,000 sq ft (1,900 m 2) addition containing a school-use computer lab and eight classrooms began construction that lasted for nine months.


The original building was built at its current location in 1959. It is under the jurisdiction of Alpine School District. The campus of PGHS is located at 700 East 200 South, Pleasant Grove, Utah. It was moved to the lower story of the building and was modified to reduce the chances of such a disaster recurring. It took the school approximately five years to fully rebuild the library. A spark ignited the fumes, which caused an explosion, killing the two men and starting a raging fire in the library. While they were cleaning, volatile fumes filled the room they were in. Riley Richards and Chris Varney, two janitors, were killed in the accident. In August 1972, a fire broke out in the new library. It was later changed to the Viking, which is the current mascot. It was similar to the Grover, but the Valkyrie in Norse mythology is an angel of war who chooses which heroes will die in battle. In 1959, when Pleasant Grove switched over schools, the mascot was changed to the Valkyrie. In the school's early years, the mascot was the Pleasant Grove Grovarian. The G was lit again for the first time in about three years after the 2010 Homecoming game. With the help of students and the community, they were able to raise over $5,500 and buy two new 500-watt generators, over 1000 feet of new light cords and new fluorescent light bulbs. The 2010-2011 student council started the "Light the G" fundraiser, spearheaded by student council member Jeremy Jensen.
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Recently the lighting equipment and generator broke down because of age and use. The G is lit every year for special occasions such as homecoming and graduation. It was later removed from holiday status because the grass on the football field was being destroyed by the people celebrating. From then on G Day was celebrated as a Pleasant Grove holiday. The student body fought to keep the G standing and raised enough money to keep it from being taken down. In 1984 the G was nearly taken down because of maintenance fees. The first time the G was lit was in 1929. In 1921, a group of seniors put a block letter "G" on Little Mountain west of Mount Timpanogos. The new building was not quite large enough, so the 9th grade stayed with the junior high school. The school was eventually moved to a larger building half a mile away, built in 1959. The former location was the city's old recreational center. Additional rooms were eventually added on due to the increasing number of students. Pleasant Grove High School was established in 1912.

In January 1976 a new Junior High School was completed and the former high school was sold by the school district to Pleasant Grove City. With the completion of the high school at 200 South and 700 East, the older school building continued to be used as the junior high school. This school location included students in grades 7 through 12 until 1959. In January 1922 students began attending at a newly completed location on 200 South, between Main Street and 100 East. It is now referred to as the Old Bell School, and is currently a museum. This location served as the high school from 1918 to 1922.

Previously the high school was located on 100 East between Center and 100 South. The current school location (700 East and 200 South) began student attendance in 1959. Pleasant Grove High School ( PGHS) is a public high school located at approximately 700 East, 200 South in Pleasant Grove, Utah, United States.
