Elevation - mattyschell/nyc-spatial-rolodex GitHub Wiki

Planimetrics Capture Rules

https://github.com/CityOfNewYork/nyc-planimetrics/blob/main/Capture_Rules.md#elevation

NYCMaps ArcGIS Online

https://nyc.maps.arcgis.com/home/item.html?id=725f93fcaa9845c1ae9198e3a6967b84