In 1892, California passed a progressive piece of education legislation enabling counties to establish public high schools. Many California counties, while embraced the concept, were slow to implement due to the financial crisis of 1893, which certain regions took decades to recover.
In the spring of 1902, Lassen County Superintendent of Schools, O.M. Doyle embarked on an ambitious campaign to form a Lassen County High School. He succeeded. On November 4, 1902 the voters approved the measure—637 Yes and 295 Opposed. The opposition came mainly from Big Valley, Madeline Plains and Long Valley, since there was no doubt the high school would be located in Susanville, and they resided such a great distance from there, it would not be beneficial in their opinion.
On September 14, 1903, the first session of the Lassen County High School was held. In attendance were approximately forty students, with two instructors, George Barton and F.C. Schofield, the latter also served as principal. In the summer of 1905, construction began on a high school, at a cost of sum $30,000. That iconic building on Main Street was torn down in 1968 and replaced with the current structures.