Forest Service scientists and partners of the San Juan Urban-Long Term Research Area (ULTRA) developed an online mapping tool to assist city planners, forest managers, NGOs, community leaders, scientists and residents to identify key green areas for the sustainability planning of San Juan. The tool allows users to register crucial site-specific information in maps about how city green areas are being used, owned, threatened, and managed for potential ecosystem services; for example, protection of water systems, wildlife habitat, recreation services. It uses a high-resolution map of land cover developed by institute technician Olga Ramos-Gonzalez to assess the connectivity potential of the city's green infrastructure based on innovative methodologies such as the Morphological Spatial Pattern Analysis.). The tool also allows multiple stakeholders in the city to deliberate and model multiple scenarios for green connectivity and their utility in addressing various risks, such as flood hazards. The scientists held the first of a series of planned workshops with stakeholders June 2013 to identify, characterize, and prioritize important green areas for land use and watershed management in the city. Participants included the directors of Land Use Planning and Environmental Permits of the Municipality of San Juan, representatives from the Puerto Rico Department of the Environment and Natural Resources, representatives from nongovernment organizations, scientists from the University of Puerto Rico, and residents from various communities in the San Juan area. Stakeholders and community workshops will continue in 2014 to prioritize areas and develop strategies to protect, manage, and connect the city's green infrastructure.