Walden Pond with fall colors. Near the site of Thoreau's rustic cabin. Concord, MA

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Size: 6000px × 4000px
Photo credit: © Paul Mozell / Alamy / Afripics
License: Royalty Free
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Keywords: concord, conservation, earth, england, environment, global, green, ma, massachusetts, nature, outdoors, pond, preservation, protection, recreation, thoreau, usa, walden, warming