Here [1] is a document (there is a PDF link on the page, since it's on AWS I don't think the direct link is persistent) describing how the BGN sources the names, the relevant part for you is this:
"Geographic names and their applications specifically established by an act of Congress,
Executive order, Treaty, or Federal proclamation are official by law."
Comments
Here [1] is a document (there is a PDF link on the page, since it's on AWS I don't think the direct link is persistent) describing how the BGN sources the names, the relevant part for you is this:
"Geographic names and their applications specifically established by an act of Congress, Executive order, Treaty, or Federal proclamation are official by law."
1. https://www.usgs.gov/media/files/us-board-geographic-names-p...