This document presents the preliminary scenario framework for the Ring of Fire (ROF) Regional Assessment (RA) and describes the methods and processes used to develop it. Firelight is completing this work at the direction of the Regional Assessment Working Group (RAWG). At the time of preparing this document, the scenario mapping methodology, draft maps, and  summary of limitations, challenges, and opportunities are preliminary. Firelight and the RAWG continue to collaborate on next steps for this work.