File:River of rocks at the Hawk Mountain, Pennsylvania 2007.jpg

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English: The "River of Rocks" at the Hawk Mountain, Pennsylvania. According to www.hawkmountain.org, this formation is a mile-long boulder field, up to 40 feet deep, which was deposited 10,000-12,000 years ago (the end of the last ice age), when glaciers stopped 40-50 miles to the north of this location. A periglacial process cracked boulders from the ridgetop that gradually slid to their current position. The photo was taken on July 31, 2007
Date 20 August 2007 (original upload date)
Source Transferred from en.wikipedia to Commons.
Author Randy42724 at English Wikipedia

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The original description page was here. All following user names refer to en.wikipedia.
  • 2007-08-20 03:31 Randy42724 1536×864×8 (469973 bytes)

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Public domain This work has been released into the public domain by its author, Randy42724 at English Wikipedia. This applies worldwide.
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Randy42724 grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

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current19:18, 30 December 2007Thumbnail for version as of 19:18, 30 December 20071,536 × 864 (459 KB)Thuresson (talk | contribs){{Information |Description={{en|The "River of Rocks" at the Hawk Mountain, Pennsylvania. According to www.hawkmountain.org, this formation is a mile-long boulder field, up to 40 feet deep, which was deposited 10,000-12,000 years ago (the end of the last i

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