Open-File Report - U. S. Geological Survey
Open File Rep U S Geol Surv
Published/Hosted by U.S. Geological Survey.
Interpretive information that needs to be released immediately; maps and reports (and their supporting data) that need to be released as supporting documentation because they are referenced, discussed, or interpreted in another information product; preliminary findings (pending a final map or report); interim computer programs and user guides; bibliographies.
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