In the 1930's there were up to 250 people living in the area using dry land farming. Residents grew corn, beans, wheat, squash and other crops for the table and to sell at the market. Until the 1920's, the only mode of travel was horse and buckboard. Because of a climate change, making farming more difficult, and the passage of the Taylor Grazing Act of 1934, most residents started sheep or cattle ranches. Gradually, people moved away from Mount Trumbull into the towns of Washington County, Utah.
People continue to live in the area.
The old schoolhouse holds fond memories for those who received some or all of their education there. It functioned as a school, a church, a dance hall, and a town meeting place. People came from miles around to attend dances and listen to music played by local musicians which was their main source of entertainment. The first schooling in the area took place in the home of one of the local residents. In order to accommodate a growing student-body, a modest schoolhouse was built.