I found the link labeled or sometimes listed directly under the downloads tab as "Version 3.6" . I clicked through.
plot(st_geometry(usa))
Delimits hundreds of thousands of individual internal borders ranging from country-level down to local municipal layers.
GADM data is available at https://gadm.org . However, the site defaults to the latest version (currently v4.1+). To get version 3.6 specifically: download gadm data version 36 work
If using a GeoPackage, select the specific administrative level layer you need from the prompt. Click . Working in ArcGIS Pro Open ArcGIS Pro and open a map view.
Here is a step-by-step guide on how to download, process, and utilize GADM v3.6 data.
If you are working with the .rds format or the geopackage in R, use the sf package for modern spatial analysis. I found the link labeled or sometimes listed
I clicked the link next to the country name.
For more information and support, consult these resources:
The choice between versions depends on your specific needs. GADM 3.6 is an excellent choice for projects requiring stability, compatibility with specific packages, or a detailed snapshot of administrative boundaries as they existed in 2018. Newer versions are preferable when you need the most current boundaries. GADM data is available at https://gadm
Look for the link (or historical data repository) to locate Version 3.6. Select your target country from the dropdown menu. Choose your preferred file format and click download. Method B: Global Database Download
Option A: The "Download All" button. I hovered over this for a second. It’s a tempting proposition—downloading the entire world in one go. But for v3.6, a global extraction is a heavy lift (gigabytes of data). I didn't need the administrative boundaries of Greenland or Antarctica for this project.
gdf = gpd.read_file("gadm36_USA_1.gpkg", layer="gadm36_USA_1")