"OASIS has always been a collaborative partnership, and the newest version of the website features data and maps from new and long-standing partners (see our Wiki for more background). These include the Mannahatta Project at the Wildlife Conservation Society, the Stewardship Mapping Project of the USDA Forest Service, the US EPA's Harbor Estuary Program and the US Army Corps of Engineers, and the Council on the Environment of NYC community gardens program."
Information about every street tree in NYC.
"Championing resident stewardship of land to build just and equitable cities."
These projects create maps and other visualizations using datasets available through NYC Open Data. Datasets are contributed by multiple NYC agencies including 311 reports, DOB, DOE, DCP, and more. Here is a full list of contributing agencies.