Watershed Boundary Dataset, 8-Digit Hydrologic Units

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The 8-Digit Hydrologic Units, a component of the Watershed Boundary Dataset (WBD), depict the fourth level hydrologic subdivision of the United States. A hydrologic unit can accept surface water from upstream drainage areas and may define a drainage area with … Continued

Watershed Boundary Dataset, 6-Digit Hydrologic Units

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The 6-Digit Hydrologic Units, a component of the Watershed Boundary Dataset (WBD), depict the third level hydrologic subdivision of the United States. A 6-digit hydrologic unit may subdivide a 4-digit hydrologic unit or may be equivalent. There are 401 6-digit … Continued

Missouri NAIP, 2020

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The National Agriculture Imagery Program (NAIP) product is aerial imagery based on data collected in the summer of 2020.