ArcGIS Online: Basemap Layer Data Source

RachaelChasse — Tue, 15 Jan 2019 15:32:08 GMT

Good Morning,

I am customizing the Light Grey Canvas vector basemap, and using this as my basemap in ArcGIS Pro. In ArcGIS pro, I need to clip some block group polygons using the light grey LAND area that appears on the basemap. The problem is, none of the datasets I have found in Portal / Living Atlas match the basemap land boundaries.

Does anyone know what data sources are being used to generate the land area on the default base maps? Boston has a very detailed coast in this area, with both rivers and oceans contributing--nothing I have tried so far seems to match up enough to make a clean overlay. The area I am focused on is in the image below.

Thank you!

Re: ArcGIS Online: Basemap Layer Data Source

ConorFlynn — Thu, 17 Jul 2025 23:15:09 GMT

I have the same issue! I've looked everywhere online and cannot find the data source for base maps. The ArcGIS Vector Tile Style Editor allows examination of the layers, but I cannot find the layers published independently to use for analysis.

topic Re: ArcGIS Online: Basemap Layer Data Source in ArcGIS Online Questions

ArcGIS Online: Basemap Layer Data Source

Re: ArcGIS Online: Basemap Layer Data Source