By Joel Weatherly | Edmonton, Alberta, Canada

By Mark Wralstad | Virginia Beach, VA, USA

By Eliot Herman | Tucson AZ

By Steven Bellavia | Cherry Springs State Park, PA

By Frank Lu | Arlington, Texas, USA

By Kevan Hubbard | Ravenscar, North Yorkshire Moors National Park, England

By Gwen Urey | http://flic.kr/p/2sEG1vM

By Tim Rubbert | Glacier National Park, Montana

By Julie Hubbard | Carson, Va. 23830

By Erik Fraser | White Mountains New Hampshire

By Jorge Vigueras | Wilmington, NC

By Amy Mallison-Austin | Shinglehouse, PA, US

By Bob Nestor | Bloomingdale, NJ USA

By Denise Anderson | West Liberty, Iowa

By GREG REDFERN | CENTRAL VIRGINIA

By Oleg Rumiancev | Bainsville, Ontario, Canada