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Welcome!

This documentation site will help you understand OldInsuranceMaps.net, a crowdsourcing platform for creating and viewing georeferenced mosaics of historical fire insurance maps, primarily from the Library of Congress Sanborn Maps collection.

  • OldInsuranceMaps.net - The main platform and georeferencing application.
  • OSMUS Slack channel - OpenStreetMap US maintains a very active Slack workspace, and we have our own channel #oldinsurancemaps where people discuss this platform.
  • OHM Discussion Forum - We have a dedicated category in the OpenHistoricalMap forum, drop by and introduce yourself there, and feel free to ask questions about the project and how people are using it.
  • Blog & Newsletter - The latest news about the project, plus the full archive of newsletters going back to 2022.
  • Online Historical Map Georeferencer (OHMG) - Information about the concepts and open source software behind this project, including architecture and installation docs.
  • Github Repo - For bug reports, feature requests, and technical discussion.

Contact

Questions, concerns, or feedback: [email protected].