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Digital Data Sets of Depth-Duration Frequency of Precipitation for Oklahoma, USGS OFR 99-463.

Published by U.S. Geological Survey | Department of the Interior | Metadata Last Checked: February 10, 2026 | Last Modified: 2020-11-17T00:00:00Z
This data set consists of digital county boundaries for Oklahoma. The boundaries were derived from U.S. Geological Survey 1:100,000-scale Digital Line Graph data sets. Two attributes are associated with each county polygon. The first is the FIPS code and the second is the county name.

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