The Solar Mapping Tool is part of Scenic Hudson’s HowToSolarNow toolkit, aimed at helping municipal, industry, and conservation stakeholders rapidly develop solar energy generation in the Hudson Valley while minimizing negative impacts to our communities’ natural, agricultural, and cultural resources. The Solar Mapping Tool is an interactive, web-based educational GIS tool that includes information on the types and sizes of solar development in the Hudson Valley, how solar differs from other types of development, and how to proactively and responsibly incorporate solar development into land-use planning. We will provide an overview of the Tool and show how it allows users to overlay data layers in a web map, including layers related to solar opportunities, natural resources, and solar feasibility. We will also review our Replication Guide, aimed at helping other regions of New York State create similar GIS tools to promote responsible solar energy development proactively using GIS.