The USDA Forest Service (USFS) Wildfire Crisis Strategy (WCS) recently designated the Mt. Hood National Forest and ~500,000 acres of adjacent land ownership as one of 21 priority landscapes in the western United States. The overall goal of the action is to restore the resiliency of forest ecosystems and communities to wildfire, climate change, and other disturbances. Designing and implementing forest restoration and fire resiliency treatments on the Mt. Hood priority landscape will be uniquely challenging. Unlike other priority landscapes, most of the Mt. Hood landscape is composed of productive but seasonally dry rainforests. Science describing historical fire regimes and how they vary among forest types and with topography at relatively fine landscape scales is not available to inform resilience planning. Ecologically appropriate and effective fire resilience strategies require a robust understanding of historical fire regimes and forest dynamics and how they have been altered by fire exclusion and forest management since the early 20th century. To develop histories of fire regimes and their influence forest dynamics prior to the 20th century, the Mt. Hood National Forest has partnered with forest and fire ecologists from the Tree Ring Lab in the College of Forestry at Oregon State University (https://treeringlab.forestry.oregonstate.edu/). Researchers are collecting and analyzing thousands of tree cores and cross sections. These samples will provide a refined understanding of historical fire regimes and forest conditions and their dynamics. The successful application will aid in field, shop, and laboratory work to support development of tree ring records.