It’s a safe bet that when most Americans think of scenic Colorado, they think of the sort of mountains you see at Rocky Mountain National Park, or many of the other ranges in the state. Less likely to come to mind is 1.5 cubic miles of sand. That much sand is hard to imagine at all.
That’s the amount of sand thought to be piled at Great Sand Dunes National Park in southern Colorado. Naturally, it isn’t a 1.5-mile cube, though the idea is amusing. The NPS notes that the sand is more spread out: “The 30 square mile (78 sq. km) active dunefield is where the tallest dunes reside. It is stabilized by opposing wind directions (southwestly [sic] and northeasterly), creeks that recycle sand back into it, and a 7% moisture content below the dry surface.”

We approached the park on September 14, heading eastward on Lane 6 North, an Alamosa County road through the flatlands of San Luis Valley, an enormous stretch of land between the San Juan Mountains and the Sangre de Cristo Mountains. At 8,000 square miles, San Luis is the world’s largest alpine valley, the Denver Gazette asserts, with an average elevation at more than 7,600 feet.
Great Sand Dunes was a national monument for longer than it has been a park, though park status represents an enlargement of the monument that President Hoover created. It is Colorado’s newest national park, raised to that status only a little more than 20 years ago.
At a distance of some miles from the park, you notice a pale rim at the foot of the Sangre de Cristo range. As the mountains come better into view, so does the rim, soon looking like a vast pile of sand – which it is – pushed up against the mountains by some enormous broom – which it was not (see above).



Also on offer: a nice view of the Sangre de Cristo, including flora that thrives in the sandy soil of its foothills.

The tourist side of GSDNP features a visitor center and a parking lot and, a short ways away, camp sites. Vegetation girds the parking lot. From there – dunes at the other end of a long sand flat.


No further signs, no trails. Visitors head toward the dunes and wander around wherever they want.



A major activity is sandboarding. Like snowboarding, I suppose, only without the freezing white stuff. Atop this dune, sandboarders are ready to slide.

It’s a young person’s and young families’ game. We happened to meet a pair of young men on one of the dune crests, boards in hand. One of them was wearing a Texas A&M cap, and I asked if he’d gone to school there. He had, finishing a few years ago. I wasn’t entirely certain that he believed me when I told him my grandfather was Class of ’16. That is, 1916.
Horseback riding is also allowed on the dunes, under certain conditions.

We merely took a walk, climbing a few of the smaller dunes. I’d learned my lesson back in 2007, when we clawed our way up a large sand dune in Michigan, at Sleeping Bear Dunes National Lakeshore: “It was a slog. One foot up, then it slides down a bit. After all, it’s warm sand. Make that pretty hot sand. Step, slide back, step, slide back, step, slide back. Rest. Heat. Sweat. Sand in shoes. Remove sand pointlessly, because it comes back. Step, slide back, step, slide back…”
The day at GSDNP wasn’t quite as hot as in Michigan, but the sand was just as sandy. So we admired North America’s largest pile of sand, but not from the top of any particularly large pile.










































