Core geography: U.S. Census Bureau and U.S. Geological Survey, public-domain U.S. federal data. Acknowledge both agencies. Two supplementary heritage-site coordinates, Bluebird Park and Gammelgården Museum, use © OpenStreetMap contributors under the Open Database License 1.0: https://opendatacommons.org/licenses/odbl/1-0/ . The heritage_sites database is supplied under ODbL 1.0; the other geography layers retain their public-domain source status. Include OpenStreetMap attribution when displaying the heritage_sites layer. Source OSM records are included for reuse and provenance. Original narratives and cartography were prepared for this project. Linked historical articles, organization websites, logos, and photographs retain their respective rights. No third-party photographs are redistributed. Accuracy limitations and dates are retained in feature attributes and documentation.
