us & nature:
this map shows us national parks within 60 miles of areas where black population is 10.7% or higher.

A National park is defined as an area set aside by the national government for the preservation of the natural environment. A national park may be set aside for purposes of public recreation, enjoyment, and/or because of its historical or scientific interest. Furthermore, most of the landscapes and their accompanying plants and animals in a national park are kept in their natural state.

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10.7% was calculated by averaging the current US Black population of roughly 13.4% with Dr. Claud Anderson’s Black population to white uncomfortability index.