Exploring the Earth and Sky of the West

Posts tagged “sunset

Sunset to Sunrise at Bryce Canyon

Sunrise at Bryce Canyon lights up rock formations

Sunrise light illuminates rock formations at Bryce Canyon National Park

Sunset, nighttime, and sunrise are probably the three most exciting times for photography, and I got to hit all three on a quick trip to Bryce Canyon National Park this past weekend. I experienced a brilliant sunset, hiked into the Bryce amphitheater by moonlight, joined the masses for sunrise, and was back in my own home less than 24 hours after walking out the front door. I feel incredibly lucky to live close enough to such wonders that trips like this are possible. This impromptu trip was facilitated by the unseasonable heat wave currently gripping Southern Utah. On Sunday night, the overnight low at Bryce barely dropped below freezing (about 15 degrees above average for this time of year) making a quick camping trip a reasonable proposition.

This was actually my first trip to Bryce Canyon in the winter months. While snow has made itself scarce in Southern Utah the last few weeks, and most of the snow had melted away from the hoodoos, there was still quite a bit of the white stuff left on the north facing slopes, making for a gorgeous complement to the ruddy hoodoo hues.

Before hitting the trail for sunset, I took time to drive out to some of the overlooks at the south end of the park. Bryce Canyon may be known for hoodoo hiking, but south of the main amphitheater lie some truly mind-blowing views of the Grand Staircase and Colorado Plateau. The Paunsaugunt Plateau on which Bryce Canyon sits rises to elevations of more than 9,000 feet, allowing commanding views of the surrounding terrain. I truly believe that the view from Yovimpa Point is one of the best on the planet (albeit difficult to photograph), with a viewshed stretching from the North Rim of the Grand Canyon, to Navajo Mountain and Lake Powell near Page, to the 11,000 monolith of Powell Point and the Aquarius Plateau.

Panoramic view from Farview Point, Bryce Canyon National Park

Looking east from Farview Point. Note how all the snow has melted from the south facing slopes, but much remains on the north aspects

As the sun dropped lower, I headed out on the trail to Tower Bridge. In hindsight I should have taken a picture of the mud, but I guess I was too preoccupied trying not to lose a boot to the bright orange morass. With winter freeze/thaw cycles still in full swing, the trails were all littered with fragments of rock fallen from the cliffs and hoodoos above, a good reminder of the primary process responsible for creating this unique landscape.

Hoodoos, fins, and walls at Bryce Canyon National Park

Late afternoon sun illuminates hoodoos, fins, and walls along the trail to Tower Bridge at Bryce Canyon National Park

Bristlecone Pine and snow at Bryce Canyon National Park

A scraggly Bristlecone Pine (Pinus longaeva) between residual snow patches along the trail to Tower Bridge

View of Powell Point from Bryce Canyon National Park

A classic Bryce view at sunset: looking northeast towards Powell Point (10,188′) and the Aquarius Plateau

Moonrise over Powell Point and the Sinking Ship, Bryce Canyon National Park

The full moon rising over Powell Point and the Sinking Ship

My visit happened to coincide with a full moon so Milky Way photographs were out of the question. The light made it quite easy to navigate the trails looking for interesting photo opportunities. In several hours of wandering around the amphitheater, I don’t think I turned my headlamp on once. It was seriously bright out there.

Stars and constellations above Bryce Canyon

The constellation Orion hovers over the hoodoos of Bryce Canyon National Park

Star trails above Thor's Hammer, Bryce Canyon National Park

Star trails above Thor’s Hammer, Bryce Canyon National Park

With the photo above, I was hoping for longer star trails but after just half an hour, my camera battery died. After scrambling to replace it, I discovered that someone (who shall remain unnamed…) had forgotten to charge their spare camera battery. With only enough power on the spare for a few dozen more exposures, I decided to pack it in for the evening rather than continuing with the star trials, and save my remaining juice for sunrise…which turned out to be a good call.

While Bryce is beautiful at any time of day, sunrise is truly the golden hour. Because most of the amphitheater faces east, sunlight creates so many interesting light patterns among the hoodoos that one almost can’t decide where to look. This was the 2nd morning since the switch to daylight savings, and the crowds reflected the fact that sunrise was now at a quite palatable 7:30 AM.

Limber Pine in sunrise light at Bryce Canyon National Park

A famous and tenacious Limber Pine (Pinus flexilus) at Sunrise Point observes yet another sunrise

Hoodoos at sunrise, Bryce Canyon National Park

Hoodoos at sunrise, Bryce Canyon National Park

People watching sunrise at Bryce Canyon National Park

The crowds assemble for sunrise at Bryce Canyon National Park


A Sandstone Wonderland: Snow Canyon State Park

moqui marbles in snow canyon state park, Utah
moqui marbles in snow canyon state park, Utah

Thousands of moqui marbles, concretions of iron oxide minerals, accumulate in small troughs eroded into the Navajo Sandstone, Snow Canyon State Park, Utah

Southern Utah is a mecca for tourists from around the world, and most of that blame can be placed on the shoulders of a single layer of rock: the Navajo Sandstone. Quite possibly one of the most famous geological formations in the world, the Navajo Sandstone is responsible for the soaring cliffs of Zion National Park, the monoclines of Capital Reef, and the undulating, swirling, entrancing patterns of the The Wave in Arizona and Grand-Staircase Escalante National Monument in Utah. The Navajo Sandstone also rears its beautiful head in lesser known gems, such as Snow Canyon State Park just a few minutes northwest of St. George, Utah.

Snow Canyon is actually several canyons in one, all cut into the Navajo Sandstone. The original Snow Canyon existed up until about one million years ago, when it was rudely filled in by a series of basaltic lava flows originating from the northeast. Water, being the couch potato that it is, doesn’t like to carve through hard volcanic rock, so the stream that had excavated Snow Canyon promptly jumped ship to find some more Navajo Sandstone, and thus began establishing a new canyon slightly to the west. The stream went about its business carving Snow Canyon #2 until about 10,000-20,000 years ago, when it was thwarted by yet another lava flow. True to history, the stream changed course a second time, and is now busily carving Snow Canyon #3 even further to the west. The result is a multi-tiered canyon, with the remnants of the canyon-filling lava flows forming the tread of each step.

panorama of snow canyon state park, utah

360 degree panorama of Snow Canyon State Park from the top of a “turtleback” of Navajo Sandstone, a small knob of rock that was surrounded by basaltic lava flows that diverged around it during eruptions 10,000-20,000 years ago. The small dark black patch just to the left of center is the entrance to a lava tube. The current iteration of Snow Canyon is seen at left. 

The Navajo Sandstone itself is a colossal formation, several thousand feet thick in places, representing the lithified remains of a large Jurassic sand dune sea (known as an erg), likely analogous to the modern day Sahara desert. If you think Southern Utah is hot and dry today, imagine being there 180 million years ago when the climate was hot and hyper-arid. Add some dinosaurs and you’ve got yourself a fun day in the Jurassic desert. Over time, mineral-rich fluids percolated through the sand, depositing mineral cement in between the sand grains, binding them together into stone. The Navajo Sandstone is known for its spectacular aeolian (fancy geology-speak for “wind-blown”) cross-bedding, inclined layers that form when winds blow sand up the shallow face of a dune, only to have it tumble down the steep slip face on the other side.

cross beds in navajo sanstone, snow canyon state park, utah

Cross bedding in the Navajo Sandstone becomes even more pronounced as sunset nears and shadows lengthen

view of navajo sandstone ridges cliffs in snow canyon state park, utah

Looking south across swales and ridges of Navajo Sandstone from the Petrified Dunes trail in Snow Canyon State Park, Utah

A especially peculiar property of the Navajo Sandstone is the presence of occasional beds containing abundant spherical concretions of sand held together by the iron oxide minerals goethite and hematite (see photo at top of page). Commonly known as “moqui marbles,” these small spherules are slightly harder than the rest of the sandstone, so as the rock weathers away, the concretions are left behind to accumulate in large quantities on the surface of the rock. Moqui marbles can be found in many locations throughout Utah. And on Mars. The discovery of nearly identical hematite concretions by the Opportunity rover was some of the first definitive evidence that liquid water once flowed on the red planet, since the formation of the marbles requires groundwater to dissolve, and then re-precipitate iron minerals in the subsurface. If you are intrigued by my incredibly vague and simplistic description, you can find much, much more on the moqui marbles and their mode of formation here. If not, you are hereby forgiven and are welcome to enjoy the final photo without guilt:

black boulders of hematite rich beds in the navajo sandstone, snow canyon state park, utah

Hematite rich beds in the Navajo Sandstone are more resistant to weathering & erosion, forming large brown, black, and red boulders that are scattered across the landscape


Greyrock Trail Loop, Poudre Canyon, Colorado

Poudre Canyon before sunset
view of greyrock mountain and meadow

Greyrock Mountain and Greyrock Meadow

And now for a few more photos from before winter roared back into Colorado this past week:

Earlier this winter we took a day trip up Poudre Canyon, about a half hour northwest of Fort Collins. One of the more popular trails here is a ~5.5 mile loop combining the Greyrock Trail and the Greyrock Meadows Trail. A short spur trail heads up to the summit of Greyrock Mountain (pictured above) near the apex of the loop but we opted to pass on this route due to icy conditions and dwindling daylight. Despite ranging in elevation from 5,500-7,000 feet, the trail was surprisingly snow free, save for the lower sections that were well-shaded by the canyon walls.

The highlight of the hike is most certainly the spectacular granitic rock formations surrounding Greyrock Mountain. I say granitic because the rock here is actually not granite but what geologists call quartz monzonite; essentially granite with slightly less quartz and slightly more feldspar (hence the pinkish color). A seemingly trivial difference perhaps but an important one to geologists trying to unravel the history of the rocks. The steep, smooth faces of Greyrock Mountain wouldn’t look out of place amongst the granite domes of Yosemite National Park. There’s also some good sized pegmatite dikes that criss-cross the area. We found some very large and attractive quartz and feldspar crystals poking around the meadows that surround Greyrock Mountain.

A view of Greyrock Meadow

Standing on a large pegmatite dike looking down into Greyrock Meadow. The continuation of the dike can be seen as the prominent vertical pink stripe on the hillside just beyond the meadow.

On a non-geology note, the trails winds through several different burn scars, apparently of different ages based on the amount of regrowth in different areas. Many of these burned areas are likely due to the High Park Fire of 2012, one of the largest wildfires in Colorado’s history which ravaged the lower sections of Poudre Canyon. There had apparently been a large windstorm here recently, as there were numerous downed trees, some dead snags but some still very much green and alive, strewn across the trail:

downed Ponderosa Pine on the trail

One of many large, recently downed Ponderosa Pines on the Greyrock Meadow Trail.

On the hike back down to the trailhead (on the Greyrock Meadows Trail), we were treated to a spectacular sunset over Poudre Canyon as well as views of the distant Mummy Range in Rocky Mountain National Park.

Poudre Canyon before sunset

Golden hour light looking east down Poudre Canyon

Sunset above Poudre Canyon

Sunset over Poudre Canyon