Natural barrier

Natural barrier means a natural object that effectively precludes or deters access. Natural barriers include physical obstacles such as cliffs, lakes or other large bodies of water, deep and wide ravines, and mountains. Remoteness by itself is not a natural barrier.

Source

40 CFR § 61.141

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Scoping language

All terms that are used in this subpart and are not defined below are given the same meaning as in the Act and in subpart A of this part.

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