Leave no trace

verb

Definitions

Verb
  1. 1
    To follow certain outdoor ethical guidelines while camping, etc., so thoroughly that it would appear as though one had never previously been there, for the sake of nature conservation.

    "Camping in a pristine area is the ultimate Leave No Trace challenge because it is imperative that you literally leave no trace—and that is very hard to do."

  2. 2
    Used other than figuratively or idiomatically: see leave, no, trace.

Etymology

Coined around the 1960s.

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