This impervious cover data set covers the 52 towns of the Piscataqua Region Estuaries Partnership (PREP) and identifies human-made surfaces that do not allow water to permeate through them.  Naturally occurring impervious cover, such as exposed bedrock, is not included in the impervious class.

The data set was derived by interpreting 60-cm resolution orthophotography, acquired in 2021, and delineating and updating impervious cover features.
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{'Title': '', 'Author': '', 'Comments': '', 'Subject': '', 'Category': '', 'AntialiasingMode': 'None', 'TextAntialiasingMode': 'Force', 'Keywords': 'Impervious Cover,Impervious Surfaces,NH GRANIT'}
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