Historic <a href="https://en.wikipedia.org/wiki/rockfall" class="extiw" title="en:rockfall">rockfall</a> scar and debris from the north rim of <a href="https://en.wikipedia.org/wiki/Grand_Canyon_National_Park" class="extiw" title="en:Grand Canyon National Park">Grand Canyon National Park</a>.  Rockfall originates in the <a href="https://en.wikipedia.org/wiki/Coconino_Sandstone" class="extiw" title="en:Coconino Sandstone">Coconino Sandstone</a>.
<a href="https://en.wikipedia.org/wiki/User:Qfl247" class="extiw" title="en:User:Qfl247">Qfl247</a> (<a href="https://en.wikipedia.org/wiki/User_talk:Qfl247" class="extiw" title="en:User talk:Qfl247">talk</a>) (Transferred by <a href="//commons.wikimedia.org/wiki/User:Citypeek" title="User:Citypeek">Citypeek</a>/Original uploaded by <a href="https://en.wikipedia.org/wiki/Qfl247" class="extiw" title="en:Qfl247">Qfl247</a>)
I (<a href="https://en.wikipedia.org/wiki/User:Qfl247" class="extiw" title="en:User:Qfl247">Qfl247</a> (<a href="https://en.wikipedia.org/wiki/User_talk:Qfl247" class="extiw" title="en:User talk:Qfl247">talk</a>)) created this work entirely by myself. (Original uploaded on en.wikipedia)