Northwestern Massachusetts is one of the most forested, rural parts of the state. In this region, the Mohawk Trail Woodlands Partnership (MTWP) aims to build economic and ecological resilience in the face of a changing climate. Funded by a three-year grant from the U.S. Forest Service’s Urban and Community Forestry Program, the MTWP seeks to identify high-priority riparian and floodplain forest sites for planting climate-adapted trees in the Deerfield and Hoosic River watersheds. The GIS analysis-based toolkit in this report offers a replicable way to prioritize and rank sites across the MTWP geographic region.