https://video.osgeo.org/videos/watch/74315720-8f80-4860-86ea-4bc59462b154 The theme for Day 3 of the #30daymapchallenge is Polygons! In this video I show you how to make a map of postal codes and use Graduated Symbology to represent their attributes. https://30daymapchallenge.com/, https://data-algeohub.opendata.arcgis.com/search?groupIds=f9d89eb1c7c64ed39ab92c2e541369c4&type=feature%20layer, Buy me a Coffee: https://ko-fi.com/lostmapper Mastodon: https://mapstodon.space/@lostmapper Web site: https://lostmapper.com Email: brian@lostmapper.com Sun, 31 May 2026 17:18:15 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://video.osgeo.org https://video.osgeo.org/lazy-static/avatars/de841c88-3a57-45ac-9eff-a00237356bfc.png https://video.osgeo.org/videos/watch/74315720-8f80-4860-86ea-4bc59462b154 All rights reserved, unless otherwise specified in the terms specified at https://video.osgeo.org/about and potential licenses granted by each content's rightholder.