A prescribed burn is planned for Lassen Volcanic National Park within the next several days. When conditions are right, crews plan to torch a total of 30 acres in individual 5 acres plots near the Town of Mineral. The burn is expected to last 1 to 3 days, with residual activity for up to a week. Park Service officials say about 95% of the burn area has been treated in recent years to reduce stand density and ladder fuels. Lassen Park has for many years been using prescribed fire to manage growth in a way that mimics a natural landscape that existed prior to modern forest management practices.