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4 statements · 0% with external sources · numbers in brackets are citations
On other databases
2 identifiers linking Libre Map Project across the web's reference databases
4 statements · 0% with external sources · numbers in brackets are citations
2 identifiers linking Libre Map Project across the web's reference databases
From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0
The Libre Map Project was an online collection of all digital USGS 1:24K scale topographic maps covering the United States, available as a free download.