 Chaco Culture National Historical Park – New Mexico
by Jerry Pillarelli
|  The Flatirons
by Michelle Staben Wobker
|  Arches National Park, Utah - 9/23/19
by mic_hong
|  GBBG 1st cycle, Boulder County, Colorado
by Nick Komar
|  Simon: 4 Months, June 2006
by Matt Lane
|
 Shelby American Collection Museum in Colorado -- October 2011
by A.G. Arao / noyphoto
|  Big Basin State Park - Boulder Creek, California
by grudzinskiv
|  Kbal Spean
by Kazuo Lim Khee Boon
|  ROCKS+ROLLS--RIDGE ROAD
by Ed Barna
|  Spud Drive-In Giant Potato
by Jeff B.
|